i love marthastewart.com; she's got so many organizing ideas! her recipes are usually delicious as well.
the most recent martha stewart craft i made for our humble abode is an old-fashioned letterbox. the template and instructions can be found here.
tyler and i use it for organizing receipts; every time we come home, the receipt goes into the box, and once a month we sort through and file them all. it's turned out to be quite convenient and practical.