In its May issue, GQ dictated 10 Commandments Of Style for today's man. Unsurprisingly there's one about the sin of carrying an overstuffed wallet.

Commandment #6 states: "Thou Shalt Put Your Wallet On A Diet."

Following Commandment #6 requires you to ditch your wallet (and all your receipts and other unnecessary crap in it) and buy a slim leather credit card holder for your cards and a money clip for your cash.

With all due respect, I don't think it's necessary to buy a credit card holder and a money clip. All you need to do is get a slim credit card holder with a center bill slot or get a money clip wallet with credit card slots.

Personally I prefer a slim credit card holder (I prefer calling it a skinny card case) over a money clip wallet. I've had three skinny card cases. My first was one by Braun Buffel in brown cowhide. My second was one in chestnut color ostrich skin. The current one I'm using is a gift from my friend Shirley. I use it whenever I go clubbing because I'm free of the burden of a bulky wallet.

When buying a slim card holder, you should always pick one with a center slot for your folded bills. Then it won't be necessary for you to carry a money clip at the same time. In terms of style, my heart goes to Dior Homme Black Tie card holder (see left). It's uber-cool. However the glossy leather gets scratched easily. And scratches on a slim card holder are very visible because of the small surface area.

I like the skinny card case by Lanvin (see right) because it's made from tumbled cowhide which is scratch-resistant. Also the leather is supple which is important because all the card slots tend to be very "tight" when the card holder is filled up. The only drawback is its price. At USD123, it's one of the most expensive slim card holders around. But hey, it's a Lanvin.