I've blogged about the good old Gallery of "Misused" Quotation Marks before, but sadly, the gallery is pretty much defunct -- no new entries in years. But, thank you Internet, there's a very frequently-updated site to take its place: The "Blog" of "Unnecessary" Quotation Marks. Here are a few favorites:
The "milk" is in the refrigerator.
The "best" first guitar that money can buy.
Pizza since "1956"
"Do not lean on "old" glass" (yes, that's quotes-within-quotes: brilliant!)
Thanks for "coming to a complete stop."
It just never gets old. And if you enjoy "misused" quotation marks, you may also enjoy this special bonus blog: Literally, A Web Log which catalogs misuse of the term literally. (Warning: a bit of coarse language on the "literally" blog.)