I carry a small shell cordovan credit card case by Alden. I combine that with a plain sterling money clip by Tiffany. This combination is less bulky than any wallet I've used.
Kai, Is your credit card case one of the ones pictured in either "view 3" or "view 4" of the Alden catalog below? Â I've been looking for a really slim credit card case, but at least that particular retailer won't sell accessories without an accompanying shoe purchase. Alden catalog
View 4 is my credit card wallet. Very slim. I carry 2 credit cards, driver's license, ID card, building pass, and insurance card in it. Could probably fit one more credit card in it if I wanted to. It has 3 pockets. The two outside pockets are easy to access and hold a couple of credit cards each, the center pocket is a bit harder to access and will hold 2 or 3 credit cards. I HATE carrying stuff in my pants pockets, and this is the best slim wallet I've found. I'm a shell cordovan fan too, so the beautiful shell cordovan leather and Alden craftsmanship doesn't hurt either. I actually also own the folding case shown in view 2 and 3, but I don't use it as a wallet. It is a bit larger and thicker than the small one that I carry. The folding case stays in my briefcase and holds my business cards, and my frequent flier/red carpet club cards, and other cards I use when I travel.