Let me start off by saying, I'm not a photographer. If I was, I would've purchase a light tent, instead of making one a couple of years ago. At the time a light tent was $100, and I could easily make one for a few dollars.
I bought a pop-open mesh hamper from WalGreens for $1.99, and some white cloth from the scrap pile for a couple of bucks. I removed the mesh from the hamper, and hot glued the white cloth around the hamper. I cut a piece of white construction paper for the bottom, and curving up into the back, for a seamless white background.
For lights I'm using GE Reveal light bulbs.
What do you use for photographing your collection?