Show off your inner geek with these t-shirts from CafePress. There are quite a few classic geek shirts here: Space Invaders, Ubuntu, Whisky Tango Foxtrot (WTF!), Office Space, the regular expression version of “To be or not to be”, Lisp, and more. Click on any shirt for purchase details.

Short on cash? Enter to win a free GrokCode shirt.

Wrap yourself in geek fashion, or pick up a shirt for your favorite programmer, system administrator, gamer, or all around geek.