What wallets do you use inside your quilted classic?

I actually us a LV green perfo compact zippe, I'll see if I can find a picture... It's small enough to fit in there nicely. My other wallet that I use in my larger purses is my black Chanel luxury ligne wallet.
 
Have you seen any of the "flat" wallets that are popular now? Lodis makes quite a few and there are a lot of inexpensive brands out there as well. I've bought a few and just put my extra credit cards in one of those magnetic business card cases! This site has a LOT of Lodis products: www.whatshebuys.com