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This Week's Best Amazon Deals You Can Still Get

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amazon / istock

As a recurring feature, we share some amazing Amazon deals we’ve turned up. These items were the ones that were the most popular with our readers this week, and they’re still available.

Mental Floss has affiliate relationships with certain retailers (including Amazon) and may receive a small percentage of any sale. But we only get commission on items you buy and don’t return, so we’re only happy if you’re happy. Good luck deal hunting!

GADGETS, TOYS, AND MEDIA

Firefield 5x50 Nightfall 2 Night Vision Monocular for $149.99 (list price $299.99)

Microfiber Cleaning Cloth 7x7 Inch (6 Pack) for Lens, Eyeglasses, Glasses, Screen, iPad, iPhone, Tablet, Cell Phone - Lint-FREE Cleaner Cloths to Clean Camera Lenses, Tablets, Touch LCD TV Screens for $6.99 (list price $9.99)

Anker Astro E1 5200mAh Candy bar-Sized Ultra Compact Portable Charger (External Battery Power Bank) with High-Speed Charging PowerIQ Technology (Black) for $15.99 (list price $49.99)

Aibocn Power Bank 10,000mAh External Battery Charger Dual USB Portable Charger with Flashlight (Bright Singal Orange) for $10.99 (list price $59.99)

Zilu Car Phone Mount, Cell Phone Holder for Dashboard and Windshield, Car Accessories for iPhone Andorid and More-Retail Packaging for $11.99 (list price $49.99)

Rocketek USB 3.0 Memory Card Reader with a Build-in Card Cover and 2 Slots Mini Sd Card Reader for Sd Card/sdxc/sdhc/mmc/micro Sd Card/tf/micro Sdxc/micro Sdhc Memory Cards for $8.99 (list price $16.99)

Wemo Mini Smart Plug, Wi-Fi Enabled, Works with Amazon Alexa for $29.99 (list price $34.99)

OontZ Angle 3 PLUS by Cambridge SoundWorks - Bluetooth Speaker : Up to 30 HOUR Playtime; More Bass; Exceptional Sound; 10W+ POWER; Water Resistant, Perfect Portable Wireless Speaker [New] for $34.99 (list price $119.99)

HomeSpot Bluetooth Transmitter, Wireless Portable Splitter, Works with 3.5mm Aux devices, iPods, MP3, CD Player, Laptop, TV ears, aptX Low Latency supported for $24.99 (list price $49.99)

Naturalico Shiatsu Massager - Kneading Massage Therapy for Foot, Back, Neck and Shoulder Pain - Relieves Sore Muscles - Total Body Relaxation for $56.95 (list price $129.95)

Anker PowerCore Slim 5000 Portable Charger, Ultra Slim 5000mAh External Battery with Fast-Charging PowerIQ, Pocket Friendly Power Bank, Perfectly designed for Smartphones for $18.99 (list price $49.99)

JTD Wireless RF Item Locator/Key Finder with LED flashlight and base support. With 4 Receivers Key Finder-Wireless key RF locator, Remote Control, Pet, Cell, Wireless RF Remote Item, Wallet Locator. (4 Receivers) for $17.49 (list price $21.99)

Cigarette Lighter Adapter, 120W 3-Socket Car Cigarette Lighter Splitter 3.4A Dual USB Car Charger Adapter DC 12V/24V Outlet Multi-functions Car Splitter for iPhone iPad Samsung GPS Dashcam for $9.99 (list price $16.99)

GRDE Bluetooth Earbuds, True Wireless Stereo Earphones Noise Isolation Mini Sweatproof Sports Headphones with Mic Dual In-ear Buds Headset (Black) for $47.99 (list price $99.99)

Micro USB Cables (2-Pack 3.3ft) Rampow Nylon Braided Samsung usb cable/charging cords for Android Devices, Galaxy, Sony, Motorola and More - Space Grey for $8.49 (list price $22.99)

Mpow Air Vent Magnetic Car Phone Mount, Cell Phone Holder for iPhone 7/6S/6 Plus/5S/5,Google Pixel/Pixel XL/Nexus 6/6P, LG,HTC, Huawei, Black [2 PACK] for $11.99 (list price $15.99)

Spigen S350 Apple Watch Stand with Night Stand Mode for Apple Watch Series 1 / Series 2 / 42mm / 38mm - Black for $7.99 (list price $14.99)

Jackery Mini Premium 3350mAh Portable Charger - External Battery Pack, Power Bank, & Portable iPhone Charger for iPhone 7, 7 Plus, 6s, 6s Plus, iPad, Samsung Galaxy S7, Samsung Galaxy S6 (Black) for $11.99 (list price $29.99)

CVLIFE 12x50 Compact Monocular Telescope Pocket Mono Spotting Scope With Compass and Pouch For Concert, Hunting, Camping, Bird Watching for $16.99 (list price $49.99)

Fitbit Charge Wristband, Blue, Large for $76.66 (list price $109.95)

Lumina Full HD 1080P Zoom-Series Ultra Wide Angle Dashboard Camera DVR Camcorder Recorder Car Dash Cam with G-Sensor for $94.97 (list price $244.99)

SoundPEATS Wireless Headphones Sport Bluetooth Earbuds Sweatproof Running Earphones (Bluetooth 4.1, 6 Hours Talk time, CVC 6.0 Noise Cancelling, with Mic) - Black&Red for $15.99 (list price $45.99)

TaoTronics Bluetooth Headphones Wireless In Ear Earbuds Sports Sweatproof Earphones with Built in Mic (Cordless 4.1, Secure Ear Hooks Design, 7 Hours Play Time) for $25.99 (list price $29.99)

Anker 60W 10-Port USB Wall Charger, PowerPort 10 for iPhone 7 / 6s / Plus, iPad Pro / Air 2 / mini, Galaxy S7 / S6 / Edge / Plus, Note 5 / 4, LG, Nexus, HTC and More for $33.59 (list price $99.99)

Bluetooth Headphones, TOTU Wireless V4.1 Stereo Noise Isolating Sports Sweatproof Headset with Mic for iPhone 7 Samsung Galaxy S7 and Android Phones [Upgraded Version], Green for $19.99 (list price $39.99)

Cat-Opoly for $20.86 (list price $22.72)

Projectables LED Plug-In Night Light, Six-Image, 13347, Six-Images Project Onto Wall or Ceiling, Solar System, Earth, Moon, Safari, Aquarium, Coral Reef for $9.97 (list price $11.49)

ALEX Toys Little Hands Picture Mosaic for $5.40 (list price $12.00)

LEGO STAR WARS TIE Striker 75154 for $48.99 (list price $69.99)

LEGO Star Wars First Order Stormtrooper 75114 for $15.99 (list price $19.99)

LEGO BATMAN MOVIE The Batmobile 70905 Building Kit (581 Piece) for $47.49 (list price $59.99)

Citizen Eco-Drive Men's BU2023-04E Calendrier Gold-Tone Watch with Leather Band for $225.00 (list price $375.00)

KITCHEN

OXO Good Grips Water Bottle Cleaning Set for $9.99 (list price $11.99)

ThermoPro TP03A Digital Food Cooking Thermometer Instant Read Meat Thermometer for Kitchen BBQ Grill Smoker for $9.99 (list price $29.99)

Airtight Cold Brew Coffee Maker - 1 Quart Sealing Iced Coffee Maker - Glass Pitcher with Removable Filter for $18.69 (list price $69.99)

#1 Premium Heavy Duty Pan Organizer - Bottom Tier 1 Inch Taller for Larger Pans - No Assembly Required - Black for $19.95 (list price $29.95)

Popcorn Maker for Microwave - Green - Silicone Popcorn Popper - Collapsible Bowl with Lid - FDA approved BPA Free for $15.99 (list price $49.99)

Crock-Pot SCCPVL610-S 6-Quart Programmable Cook and Carry Oval Slow Cooker, Digital Timer, Stainless Steel for $34.30 (list price $59.99)

Splatter Screen Guard Set of 3 Fine Mesh Stainless Steel - No Mess, For Steaming, Cover for Pouring for $21.49 (list price $49.99)

Tanors Ceramic Coffee Dripper for $10.99 (list price $14.99)

The Original GORILLA GRIP Non-Slip Reversible Cutting Board, BPA Free, FDA Approved Materials (Set of 3 Boards: Black) for $19.99 (list price $39.99)

Wilton Excelle Elite 6-Cup Mini Fluted Pan for $15.42 (list price $18.65)

Box Grater, 4-Sided Stainless Steel Large 10-inch Grater for Parmesan Cheese, Ginger, Vegetables for $11.97 (list price $19.99)

iNeibo Kitchen Silicone Spoon Rest, Set of 4, (Colorful,Big Size) for $8.99 (list price $14.69)

Marquis by Waterford Markham Goblet, Set of 4 for $39.99 (list price $100.00)

Rachael Ray 2 Piece Cucina Nonstick Bakeware Crisper Pan Set, Latte Brown with Cranberry Red Handle Grips for $13.44 (list price $49.00)

Thermos Funtainer 12 Ounce Bottle, Blue for $12.50 (list price $14.99)

Aroma Simply Stainless 3-Cup(Uncooked) 6-Cup (Cooked) Rice Cooker, White for $33.99 (list price $39.99)

T-fal E93808 Professional Total Nonstick Thermo-Spot Heat Indicator Fry Pan, 12.5 Inch, Black for $23.11 (list price $24.23)

Cooks Standard Multi-Ply Clad Stainless-Steel 5-Quart 11-Inch Covered Deep Saute Pan for $51.28 (list price $57.28)

Inventions for Market One Click Stick Butter Cutter with Stainless Steel Blade for $9.99 (list price $14.99)

Good Cook Classic Safe Cut Can Opener for $10.44 (list price $14.99)

FittSMILE Butter Knife Magic Handmade Eco-Friendly Butter Knives from Natural Untreated Antibacterial Juniper Wood for $12.99 (list price $17.97)

Brita Water Filter Pitcher Replacement Filters, 4 Count for $18.97 (list price $39.99)

Circleware Villa Olive Oil and Vinegar Glass Dispenser Bottles, Set of 2, 16 oz., Clear for $13.99 (list price $14.99)

Cook N Home Stainless Steel Cookware 1 Quart Sauce Pan with Lid for $10.99 (list price $14.99)

French Press Coffee & Tea Maker with Heat Proof and Stainless Steel Filter, 11 Oz / 350ml for $8.48 (list price $15.99)

Cuisinart 733-30H Chef's Classic Stainless 5-1/2-Quart Saute Pan with Helper Handle and Cover for $41.03 (list price $140.00)

Bellemain 4 oz. Porcelain Ramekins, Set of 6 for $13.95 (list price $29.95)

LINKYO Stainless Steel French Press Coffee Maker 1.5L, 50oz for $34.99 (list price $79.99)

Tea Infuser, MaxMall 4-Pack Silicone Tea Infuser Handle Stainless Steel Strainer filter Infuser with Drip Tray for Loose Leaf Grain Tea Cups, Mugs, and Teapots for $8.99 (list price $29.99)

HOME

Mrs. Meyer's Clean Day Soy Candle, Lemon Verbena, 7.2 Ounce Jar for $7.64 (list price $9.79)

Mr. Clean Magic Eraser, Original, 4 Count for $3.47 (list price $4.99)

Essence of Bamboo Pillows - The Original Premium Hypoallergenic Down Alternative Fiber Pillow with Bamboo Derived Rayon / Poly Cover- Designed and Filled in USA (Queen 2-Pack) Best Sleep Ever for $33.00 (list price $149.99)

Kiwi Deluxe Shine Kit for $12.28 (list price $14.99)

Norcho Soft Microfiber Non-slip Antibacterial Rubber Luxury Bath Mat Rug 31"x19" White for $21.99 (list price $79.99)

OPOLAR 6 Inch Desktop USB Fan, USB Powered, Personal Table Fan, Mini Cooling Fan, Small Desk Fan - Bronze for $15.99 (list price $19.99)

Organizta Chic Box - Acrylic Makeup Organizer & Cosmetic Organizer with Deep Drawers & Acrylic for $64.99 (list price $79.99)

The Original Hayden Autosoap - Premium Automatic Touchless Soap Dispenser - Fingerprint Resistant Brushed Stainless Steel - Hand Sanitiser compatible - (NEW Waterproof Base!) for $29.95 (list price $69.95)

Flameless Candles 4" 5" 6" Set of 3 Ivory Dripless Real Wax Pillars Include Realistic Dancing LED Flames and 10-key Remote Control with 24-hour Timer Function-Antizer for $23.99 (list price $99.99)

ThermoPro TP50 Hygrometer Thermometer Indoor Humidity Monitor with Temperature Gauge Humidity Meter for $8.09 (list price $19.99)

OXO Good Grips Dustpan and Brush Set for $9.99 (list price $11.99)

SlipToGrip Furniture Gripper - Stops Slide - Multi Size (4 Pads) - Make 4" , 1", 2", etc.- Pre-Scored Multiple Sizes - 3/8" Felt Core - Anti Slip Rubber - No nails, No glue. Patent Pending for $10.99 (list price $19.99)

Everlasting Comfort 100% Pure Memory Foam Luxury Seat Cushion, Orthopedic Design To Relieve Back, Sciatica and Tailbone Pain for $39.95 (list price $49.95)

Everlasting Glow LED Indoor/Outdoor Candle, Timer, Bisque, 4.5" x 9" for $10.08 (list price $17.99)

Epica Super-Grip Non-Slip Area Rug Pad 5 x 8 for any hard Surface Floor, Keeps Your Rugs Safe and in Place for $15.49 (list price $27.95)

DHP Emily Convertible Linen Futon, Gray for $159.00 (list price $242.00)

URPOWER Garment Steamer 130ml Portable Handheld Fabric Steamer Fast Heat-up Powerful Travel Garment Clothes Steamer with High Capacity for Home and Travel, Travel Pouch Included for $18.99 (list price $69.99)

Whitmor Luxurious Satin Padded Hangers, 8-Pack, Cream for $9.44 (list price $11.11)

Black + Decker BDH2000L 20-Volt Max Lithium Ion Battery Cordless Hand Vacuum for $65.19 (list price $79.99)

Night Light Kids Lamp, Romantic Rotating Sky Moon & Cosmos Cover Projector Night Lighting for Children Adults Bedroom, Mood/Decorative Light, Baby Nursery Light, Living Room Gift (Pink) for $17.00 (list price $35.99)

Bounce Fabric Softener Dryer Sheets Free & Gentle 240CT for $8.99 (list price $11.87)

Hoover Vacuum Cleaner Air Steerable WindTunnel Bagless Lightweight Corded Upright UH72400 for $99.99 (list price $189.99)

Poo-Pourri Before-You-Go Toilet Spray 4-Ounce Bottle, Lavender Vanilla Scent for $12.99 (list price $14.99)

Yankee Candle Company Midsummer's Night Large Jar Candle for $20.66 (list price $27.99)

Premium Velvet Suit Hangers - 30 Pack - Heavy Duty - Non Slip - Velvet Suit Hangers Black - by Utopia Home for $16.99 (list price $39.99)

Shilucheng Fleece Soft Warm Fuzzy Plush Lightweight King (104-Inch-by-90-Inch) Couch Bed Blanket, Grey for $39.90 (list price $145.00)

Whitmor 20 Pair Floor Shoe Rack, White for $11.88 (list price $19.99)

Onepure Aromatherapy Essential Oils Gift Set, 6 Bottles/ 10ml each, 100% Pure& Therapeutic Grade (Lavender, Tea Tree, Eucalyptus, Lemongrass, Sweet Orange, Peppermint) for $12.00 (list price $79.99)

HomeZone 45-Liter Stainless Steel Rectangular Step Trash Can for $65.54 (list price $79.99)

Premium Mildew Resistant Shower Curtain Anti-bacterial Heavy-Duty10-Gauge Waterproof Liner - 72x72 Inch - Clear for $12.99 (list price $34.99)

Hoover UH70400 WindTunnel Air Bagless Upright Corded Lightweight Vacuum Cleaner for $81.74 (list price $199.99)

Hanging Laundry Bag 100% Nylon Hanging Clothes Hamper with Adjustable Shoulder Straps, Drawstring Lockable for College Student Use, 25 X 31" (Army Green) for $16.99 (list price $39.99)

HC Collection Bed Sheet & Pillowcase Set HOTEL LUXURY 1800 Series Egyptian Quality Bedding Collection! Deep Pocket, Wrinkle & Fade Resistant,Luxurious,Comfortable,Extremely Durable (King, Multiple colors available) for $24.99 (list price $69.99)

Cascade Platinum ActionPacs Dishwasher Detergent, Fresh Scent, 62 count for $16.97 (list price $18.99)

Holmes Twin Window Fan with Comfort Control Thermostat for $54.32 (list price $59.99)

Home-it 50 Pack Clothes Hangers Ivory Velvet Hangers Clothes Hanger Ultra Thin No Slip for $24.87 (list price $69.99)

Knee Pillow Pain Relief For Sciatic Nerve , Leg , Back , Pregnancy - Memory Foam Wedge With Breathable Cover for $19.95 (list price $49.99)

HEALTH AND BEAUTY

Ban Total Refresh Cooling Body Cloths Energize, 10 Count for $2.99 (list price $3.99)

The ORIGINAL Silicone Makeup Sponge - Applicator & Blender for all Foundation, Highlighter Makeup, Primer, and Creams (Drop) for $5.95 (list price $20.00)

Gillette Mach3 Turbo Men's Razor with 1 Mach3 Turbo Men's Razor Refill for $2.99 after on-screen coupon (list price $8.99)

Maybelline New York Great Lash Clear Mascara for Lash and Brow 110, 0.44 Fluid Ounce for $4.49 (list price $6.40)

Secret Clinical Strength Women's smooth Solid Ooh-La-La Lavender Scent Antiperspirant & Deodorant 2.6 Oz for $8.27 (list price $11.97)

Nerdwax Stop Slipping Glasses as Seen on Shark Tank for $12.99 (list price $14.99)

Etude House My Lash Serum, 1.28 Ounce for $4.72 (list price $6.23)

Q-tips Cotton Swabs, 2000 count for $11.92 (list price $14.89)

Schick Hydro 5 Razor Blade Refills for Men with Flip Trimmer - 8 Count for $16.40 (list price $26.49)

Aria Starr Beauty Natural Dead Sea Mud Mask, 8.8 Ounce for $17.95 (list price $48.95)

NIVEA Men Platinum Protect 3-in-1 Body Wash 16.9 Fluid Ounce for $3.61 (list price $4.99)

PURA D'OR Anti-Hair Loss Premium Organic Argan Oil Shampoo (Gold Label), 16 Fluid Ounce for $30.94 after on-screen coupon (list price $39.00)

Speed Stick Irish Spring Antiperspirant/Deodorant, Original, 2.7 Ounce (Pack of 6) for $15.99 (list price $26.33)

Batiste Dry Shampoo, Original, 3 Count (Packaging May Vary) for $17.97 (list price $23.99)

Neutrogena T/Gel Therapeutic Shampoo Original Formula, 16 Fl. Oz for $12.25 (list price $16.39)

Organic African Black Soap - Best for Acne Treatment, Eczema, Dry Skin, Psoriasis, Scar Removal, Dandruff, Pimples Mark Removal, Anti-fungal Face & Body Wash for $14.95 (list price $19.95)

OLLY Restful Sleep Gummy Supplements, Blackberry Zen, 50 Count for $13.99 (list price $14.99)

Neutrogena Oil-Free Moisture With Broad Spectrum SPF 35 Sunscreen, 2.5 Fl. Oz for $8.69 (list price $11.25)

Gold N' Hot GH3013 Gold Tone Crimping Iron, 2 Inch for $25.48 (list price $38.00)

NOW Foods Tea Tree Oil, 1-Ounce for $7.48 (list price $8.99)

Mizon Cosmetics Snail Wrinkle Care Sleeping Pack, 2.7 Fluid Ounce for $10.59 (list price $15.99)

Crest Pro-Health HD Daily Two-Step Toothpaste System for a Healthier Mouth and Whiter Teeth - 4.0 Oz and 2.3 Oz Tubes for $12.99 (list price $14.99)

Gisala Boar Bristle Paddle Oval Hair Brush with Wooden Handle for Wet and Dry Hair,Hair Comb for Adults and Children for $7.99 (list price $49.99)

Jergens Natural Glow Wet Skin Moisturizer, Fair to Medium Skin Tones, 7.5 Ounce for $8.69 (list price $8.99)

BEAKEY Makeup Brushes Set Premium Makeup Brush Kit Synthetic Kabuki with Blender Sponge and Brush Egg (10+2pcs,Black/Silver) for $9.99 (list price $30.00)

Gillette Satin Care Shave Gel, Ultra Sensitive, Twin Pack (7 Ounce Each) for $2.63 (list price $5.99)

OFFICE, SCHOOL, AND CRAFTS

Sakura 30067 8-Piece Pigma Micron, Graphic & Brush Pen Set, Black for $9.77 (list price $23.19)

Officemate OIC Achieva Side Load Letter Tray, Recycled, Black, 6 Pack (26212) for $14.17 (list price $22.42)

Smart Color Art 100 Colors Gel Pen Set for $18.99 (list price $59.00)

Smead Self-Adhesive Fastener, 2" Capacity, Brown, 100 per Box (68220) for $9.39 (list price $15.99)

Detail Paint Brush Set - 12 Miniature Brushes for Art Painting - Acrylic, Watercolor, Oil for $14.97 (list price $39.97)

Stabilo Pens Item 8830-1 Point 88-Fine Point-30 Color Wallet of Coloring Pens/Fineline Markers-Includes 30 Unique Colors for $16.99 (list price $28.50)

Paper Mate Profile Retractable Ballpoint Pens, Bold (1.4mm), Assorted Colors, 12 Count for $7.75 (list price $17.09)

Boss Office Products B991-CP Heavy Duty Double Plush LeatherPlus Chair with 350lbs Weight Capacity in Black for $199.99 (list price $500.00)

ArtColors Chalk Markers - 12 Pack - BIG SALE. 11 Amazing Action for $12.99 (list price $23.98)

X-ACTO SchoolPro Classroom Electric Pencil Sharpener, Heavy Duty, Blue/Grey for $21.99 (list price $29.00)

Prismacolor Premier Colored Pencils, Soft Core, 132-Count for $57.74 (list price $68.00)

Kuuqa Black Hard Pencil Case EVA Hard Shell Pen Case Holder for Executive Fountain Pen and Stylus Touch Pen for $7.69 (list price $14.29)

Avery Two-Pocket Folders Dark Blue, Pack of 25 (47975) for $4.16 (list price $7.25)

Dust-Off Disposable Compressed Gas Duster, 10 oz Cans, 2 Pack for $12.44 (list price $13.59)

Leather Writing Journal Notebook, MALEDEN Classic Spiral Bound Notebook Refillable Diary Sketchbook Gifts with Unlined Travel Journals to Write in for Girls and Boys (Sky Blue) for $8.99 (list price $16.99)

OUTDOORS, GARDEN, AND SPORTS

WESTERN 28067 Maple BBQ Smoking Chips for $2.87 (list price $9.49)

AAA 121-Piece Road Trip First Aid Kit for $23.65 (list price $29.99)

LED Emergency Roadside Flashing Flares Safety Strobe Light - Road Warning Beacon (Solid/Strobe/Flashlight), Magnetic Base, Detachable Stand, Storage Case (2 Cases = 4 PCS, Battery Not Included) for $41.99 (list price $49.99)

Emergency Mylar Thermal Blankets (4-Pack) + BONUS Signature Gold Foil Space Blanket: Designed for NASA - Perfect for Outdoors, Hiking, Survival, Marathons or First Aid (Various Color Options) for $14.95 (list price $24.99)

Intcrown Combination Locks 4 Digit TSA Approved for Luggage Suitcase Gym Lockers (2 Pack) for $9.99 (list price $29.99)

Hoffman Richter Stinger Tactical Pen for $19.95 (list price $49.95)

Cold Steel Trail Boss Hickory Handle Axe for $25.00 (list price $47.99)

Lansky Dual Grit Sharpener LPUCK for $6.26 (list price $10.95)

Meyerco MBSAIL Sailor's Knife for $7.99 (list price $9.14)

SABRE 3-IN-1 Pepper Spray - Advanced Police Strength - Compact Size with Clip, Contains 35 Bursts (5x Other Brands) & 10-Foot (3M) Range for $6.99 (list price $11.99)

Caravan Sports Infinity Zero Gravity Chair, Beige for $36.59 (list price $79.99)

Earthwise 11-Inch 8.5-Amp Corded Electric Tiller and Cultivator TC70001 for $89.78 (list price $184.99)

Bloomin Earth Day Wildflower Seed Bomb Bags (6 seed bombs per bag, 3 bags per pack) for $22.00 (list price $24.00)

TravelChair Slacker Chair Folding Tripod Camp Stool, Black for $17.99 (list price $19.95)

GoPets Dematting Comb with 2 Sided Professional Grooming Rake for Cats & Dogs for $21.00 (list price $44.99)

Etekcity 2 Pack Portable Outdoor LED Camping Lantern with 6 AA Batteries (Black, Collapsible) for $13.45 (list price $39.99)

PetSafe Drinkwell Platinum Pet Fountain for $34.99 (list price $41.92)

Cuisinart CSBP-100 3-in-1 Stuffed Burger Press for $7.99 (list price $14.99)

Stanley Adventure Stacking Vacuum Pint, Stainless Steel, 16 oz for $9.79 (list price $15.00)

Flexrake LRB701 Compound Bypass Lopper for $13.26 (list price $32.99)

LE 16.4ft LED Flexible Light Strip, 300 Units SMD 2835 LEDs, 12V DC Non-waterproof, Light Strips, LED ribbon, DIY Christmas Holiday Home Kitchen Car Bar Indoor Party Decoration (Daylight White) for $7.99 (list price $15.99)

ELECTRONICS

Emtec Peanuts 2.0 USB Flash Drive (ECMMD8GPN103) for $6.99 (list price $9.99)

Emtec Peanuts Snoopy Flying Ace 8GB USB 2.0 Flash Drive (ECMMD8GPN104) for $6.99 (list price $9.99)

AUKEY Remote Switch with 5 Wireless Outlets & 2 Remote Controls (Batteries Included) for $29.99 (list price $34.99)

Seagate Expansion 3TB Desktop External Hard Drive USB 3.0 (STEB3000100) for $89.99 (list price $119.99)

SD TF Card Reader with Lightning Micro USB Connector, External Storage Memory Expansion for iPhone/iPad/Android phones/Mac/PC - Blue-3 in 1 for $17.99 (list price $52.99)

Victsing Latest Programmable Wireless Mouse, 2.4G Portable Mobile Mouse Optical Mice with USB Receiver, 6 Adjustable DPI Levels, 5 Programmable Buttons for Notebook, PC, Laptop, Computer, Macbook for $12.99 (list price $13.99)

Anker Ultra Slim 4-Port USB 3.0 Data Hub for $9.99 (list price $19.99)

Sabrent SuperSpeed 2-Slot USB 3.0 Flash Memory Card Reader for Windows, Mac, Linux, and Certain Android Systems - Supports SD , SDHC , SDXC , MMC / MicroSD , T-Flash [Black] (CR-UMSS) for $6.49 (list price $16.99)

StarCat External CD Drive USB DVD Drive CD Burner USB Superdrive for Mac Apple iMac for $23.79 (list price $35.99)

[3 Pack] 1ft / 8 Pin Zakix(TM) USB Charge & Sync Cable for for iPhone 7/7 Plus, iPhone, iPod and iPad (White) for $9.99 (list price $34.99)

TOOLS

Always Prepared 65-Piece Roadside Assistance Auto Emergency Kit with Jumper Cables for $39.99 (list price $59.99)

Gorilla Original Gorilla Glue Minis, 12 g, Brown for $4.87 (list price $6.79)

Black Gorilla Tape 1.88 In. x 35 Yd., One Roll for $8.47

6pcs ESD Precision Anti-static Tweezers, Marrywindix Tweezers Stainless Steel Tweezers With a Bag for Electronics Jewelry-making Repairing for $8.50 (list price $9.99)

TireTek Premium Tire Pressure Gauge With Integrated Hold Valve - 60PSI for $14.97 (list price $29.95)

2 PCS IPOW Car Safety Antiskid Hammer Seatbelt Cutter Emergency Class/Window Punch Breaker Auto Rescue Disaster Escape Life-Saving Hammer Tool,Big for $12.89 (list price $15.89)

Anker Bolder LC40 LED Flashlight, Pocket-Sized LED Torch, Super Bright 400 Lumens CREE LED, IP65 Water Resistant, 3 Modes High/ Low/ Strobe for Indoors and Outdoors (Camping, Hiking, and Cycling Use) for $9.99 (list price $19.99)

Craftsman 9-47136 Slotted Phillips Screwdriver Set, 8 Piece for $19.28 (list price $28.94)

Gorilla Tough & Clear Mounting Tape, Double-Sided, 1" x 60", Clear for $5.83 (list price $7.57)

Kidde 466204 Pro 10 MP Fire Extinguisher, UL Rated 4-A, 60-B:C, Red for $53.17 (list price $84.45)

TR Industrial Anti-Fog Approved Wide-Vision Lab Safety Goggle, ANSI Z87.1 Approved for $8.99 (list price $18.99)

Loctite Heavy Duty Threadlocker, 0.2 oz, Blue 242, Single for $5.42 (list price $7.90)

Gorilla Super Glue, 6 g for $2.89 (list price $4.49)

TP-Link Smart LED Light Bulb, Wi-Fi, Dimmable White, 50W Equivalent, Works with Amazon Alexa, 1-Pack (LB100) for $19.99 (list price $34.99)

Vastar 3 Pack 19.6 Inch Drain Snake Hair Drain Clog Remover Cleaning Tool for $5.99 

First Alert BRK SC-9120B Hardwire Combination Smoke/Carbon Monoxide Alarm with Battery Backup for $31.87 (list price $92.99)

First Alert AF400-2 Tundra Fire Extinguisher Aerosol Spray Twin Pack for $24.99 (list price $49.99)

DEWALT DW2166 45-Piece Screwdriving Set with Tough Case for $14.97 (list price $19.02)

Meguiar's G17216 Ultimate Compound - 15.2 oz. for $8.39 (list price $10.24)

CH Hanson 03040 Magnetic Stud Finder for $9.99 (list price $12.99)

SE MZ101B Helping Hand with Magnifying Glass for $6.94 (list price $13.99)

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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iStock
Sponsor Content: BarkBox
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8 Common Dog Behaviors, Decoded
May 25, 2017
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iStock

Dogs are a lot more complicated than we give them credit for. As a result, sometimes things get lost in translation. We’ve yet to invent a dog-to-English translator, but there are certain behaviors you can learn to read in order to better understand what your dog is trying to tell you. The more tuned-in you are to your dog’s emotions, the better you’ll be able to respond—whether that means giving her some space or welcoming a wet, slobbery kiss. 

1. What you’ll see: Your dog is standing with his legs and body relaxed and tail low. His ears are up, but not pointed forward. His mouth is slightly open, he’s panting lightly, and his tongue is loose. His eyes? Soft or maybe slightly squinty from getting his smile on.

What it means: “Hey there, friend!” Your pup is in a calm, relaxed state. He’s open to mingling, which means you can feel comfortable letting friends say hi.

2. What you’ll see: Your dog is standing with her body leaning forward. Her ears are erect and angled forward—or have at least perked up if they’re floppy—and her mouth is closed. Her tail might be sticking out horizontally or sticking straight up and wagging slightly.

What it means: “Hark! Who goes there?!” Something caught your pup’s attention and now she’s on high alert, trying to discern whether or not the person, animal, or situation is a threat. She’ll likely stay on guard until she feels safe or becomes distracted.

3. What you’ll see: Your dog is standing, leaning slightly forward. His body and legs are tense, and his hackles—those hairs along his back and neck—are raised. His tail is stiff and twitching, not swooping playfully. His mouth is open, teeth are exposed, and he may be snarling, snapping, or barking excessively.

What it means: “Don’t mess with me!” This dog is asserting his social dominance and letting others know that he might attack if they don’t defer accordingly. A dog in this stance could be either offensively aggressive or defensively aggressive. If you encounter a dog in this state, play it safe and back away slowly without making eye contact.

4. What you’ll see: As another dog approaches, your dog lies down on his back with his tail tucked in between his legs. His paws are tucked in too, his ears are flat, and he isn’t making direct eye contact with the other dog standing over him.

What it means: “I come in peace!” Your pooch is displaying signs of submission to a more dominant dog, conveying total surrender to avoid physical confrontation. Other, less obvious, signs of submission include ears that are flattened back against the head, an avoidance of eye contact, a tongue flick, and bared teeth. Yup—a dog might bare his teeth while still being submissive, but they’ll likely be clenched together, the lips opened horizontally rather than curled up to show the front canines. A submissive dog will also slink backward or inward rather than forward, which would indicate more aggressive behavior.

5. What you’ll see: Your dog is crouching with her back hunched, tail tucked, and the corner of her mouth pulled back with lips slightly curled. Her shoulders, or hackles, are raised and her ears are flattened. She’s avoiding eye contact.

What it means: “I’m scared, but will fight you if I have to.” This dog’s fight or flight instincts have been activated. It’s best to keep your distance from a dog in this emotional state because she could attack if she feels cornered.

6. What you’ll see: You’re staring at your dog, holding eye contact. Your dog looks away from you, tentatively looks back, then looks away again. After some time, he licks his chops and yawns.

What it means: “I don’t know what’s going on and it’s weirding me out.” Your dog doesn’t know what to make of the situation, but rather than nipping or barking, he’ll stick to behaviors he knows are OK, like yawning, licking his chops, or shaking as if he’s wet. You’ll want to intervene by removing whatever it is causing him discomfort—such as an overly grabby child—and giving him some space to relax.

7. What you’ll see: Your dog has her front paws bent and lowered onto the ground with her rear in the air. Her body is relaxed, loose, and wiggly, and her tail is up and wagging from side to side. She might also let out a high-pitched or impatient bark.

What it means: “What’s the hold up? Let’s play!” This classic stance, known to dog trainers and behaviorists as “the play bow,” is a sign she’s ready to let the good times roll. Get ready for a round of fetch or tug of war, or for a good long outing at the dog park.

8. What you’ll see: You’ve just gotten home from work and your dog rushes over. He can’t stop wiggling his backside, and he may even lower himself into a giant stretch, like he’s doing yoga.

What it means: “OhmygoshImsohappytoseeyou I love you so much you’re my best friend foreverandeverandever!!!!” This one’s easy: Your pup is overjoyed his BFF is back. That big stretch is something dogs don’t pull out for just anyone; they save that for the people they truly love. Show him you feel the same way with a good belly rub and a handful of his favorite treats.

The best way to say “I love you” in dog? A monthly subscription to BarkBox. Your favorite pup will get a package filled with treats, toys, and other good stuff (and in return, you’ll probably get lots of sloppy kisses). Visit BarkBox to learn more.

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