How do you carry business cards?

This is a serious question!

In our casual world, where we don’t wear suits or jackets, where do you carry business cards? How do you carry them in so they don’t get all bent or worn?

Maybe I complicate things too much. I like to carry a few of my business cards, along with a few of my “personal” cards. Plus I like to have cards of some of the companies I’m most associated with. So at any given time, I want to carry a minimum of about 20 cards, and if I had room for 50 I’d use it. But I’ve already got enough stuff in my pockets! And pockets are not a good place to keep anything neat and clean.

I guess I need to just go ahead and use something like this. Gee that seems bulky. As usual, I seem to be unique in my problems.

Is there a better answer?