I’ve started using my Nokia camera phone to keep track of books I’m interested in. I’ll go to Border’s or Barnes and Nobles and just browse around like usual. The only difference is instead of buying anything impulsively I’ll take a photo of each book I’m interested in with my camera phone as I look. When I get back home I’ll head to Amazon.com or half.com and read the reviews and compare the amazon new / used price to the list price. If you make this a habit you will save 40-50% every time, and you may even avoid buying bad books. When you’re finished with the book you could even sell it back online. I’m sure publishers love to hear advice like that.
What do you use your camera phone for?