![dek](https://content.time.com/time/daily/2010/1008/shortlist_0830_half.com.jpg)
Half.com
Want to save a bundle on textbooks this school year? Try eBay's Half.com iPhone app. Just snap a picture of a book's bar code, and Half.com trawls the Web for the best price. (It'll also search for movies, music and games.) The app is free a deal too good to pass up.