I'm not a good fan of T-shirts. I don't feel it makes me prettier nor comfortable. I'd rather use the ones made of soft fabric. The other problem is to find a nice print that reflects our personality. That's why I think the idea of create the disign of the print by myself such a fantastic insight. My husband bought some T-shirts at Camiseteria , a brazilian on line store, and he liked the product a lot.
I think one of the most popular stores is Threadless. I never bought a Tee with them, but I heard only complements about their work.