
I don't have nearly enough business contacts to warrant one of those high-capacity rolodexes, but I've still collected quite a number of business cards over the past few years.
I keep most of them in my purple, sparkly business card case (highly professional; I know), but things are getting tight, which is why I'm sort of drawn to this super-cute desktop business card holder:

[$20, Charles & Marie]
Clean out your wallet and still keep your contacts close at hand.
Related: Mr. P Meets His Nemesis, Quick Tip of the Day: Desk Caddies, A Clean Workspace, A Clean Workspace, Part Deux