DIY Business Card Holder

Ever need a place to hold all those business cards you aquire? Here is a simple idea... Take a book, (one you don't read anymore or like- or in my case an old contract book from 1999) fold the pages in half and fold them on towards the spine. Now you have something to grab that contractors number when you need to swear at someone. Could also be used as a recipe file, or a Baseball card file.