Jamie, I'd like to suggest that perhaps you'd get more people to buy your products if the shopping cart functionality was a little more up to the expectations of a 2009 web world. I'm not talking ajaxy web2.0 wankery, but just basic functionality that should work.
- once I selected a shirt there was no way to "continue shopping" to, for example, add a sticker to my cart- when I did click back ("oh crap is that going to screw up my cart?") to check out the stickers, once I decided against them I'm in a dead-end. No way to find my shopping cart again, nor proceed to checkout
There are a bunch of other smaller issues, but I'd wager that your sales would increase if you fixed those two at least.
No idea if it will help getting the word out in our fair Mooninite-fearing city of Boston, but I ordered one.