Tankfarm Clothing is having a spring cleaning sale on all Art of Manliness T-shirts . You have until Friday, March 15, 2013 to get an official AoM T-shirt at 50% off. That’s right. T-shirts are just $9.75  (plus shipping). Choose from 13 different shirt styles. Many of these designs won’t be coming back (we’re introducing some new ones), so pick one up before it’s too late.