Like us on Facebook and Get 25% off all mental_floss Tees (Today Only!)

* Starts now and ends tonight, September 24, 2012, at midnight. Valid on full-price t-shirts only. Not valid with clearance items, package deals, previous orders, in combination with other coupon codes, or online gift certificates. Mental Floss, Inc. reserves the right to change or cancel this coupon at any time without notification.