I like the designs you posted. My school has a casual Friday as well, so I think that will be the perfect opportunity to show off some of my educationally-related t-shirts. I think this also means buying more shirts!One of my favorite Threadless shirts, "Attack of the Literacy."http://www.threadless.com/product/1235/Attack_of_Literacy
:-) That one was awesome too! I love Threadless, especially when they have sales :-). I need to find a sparkly Go Bears shirt to wear on spirit days as well.