I just bought myself a Flat Wallet from Funbags and Accessories in the Watertown Mall. One of my best friends from high school owns the store and also the one in Brookings too.
I wasn't too sure about this when I bought it but absolutely LOVE it! Courtney talked me into buying her one too and she loves hers just as much as I love mine. It holds my checkbook, checkbook register, credit cards, cash, change and a pen too. There is still room for more if you need. My girlfriend (Jodi) even had lip gloss in hers. Go out and get yourself one ladies, you will love it...$24.99 for the one with the checkbook holder, $19.99 without the checkbook holder. If you get it at Funbags and Accessories, tell them that I sent you!