I'm thinking of getting a small wallet. I already own two wristlets and have a full size skinny wallet on the way to me which I'm excited about, but don't own any small wallets for my smaller bags. I don't care for the small fold type wallets, because I want something thin. Have been considering a card case, or preferably one of the zip card cases so I have just a little more room. Anybody who uses these types of cases, even from other brands, what are the pros and cons? Do you miss the space sometimes when using the small wallets?