I wish Bookrenter was around when I went to college. Allowing students to rent books instead of buy them, Bookrenter appears a great alternative with a promise to save 50% off the retail price on average. You simply choose the books you need, have them sent to you, rent for 1-4 months, and then ship them back for free. They say all books are shipped in "like new" condition, so you don't have to worry about missing pages or a torn apart binding. It's that easy and the site appears quite reputable with a Better Business Bureau reliability certificate, as well as partnerships with prestigious colleges such as Santa Clara University, Colorado State, Chapman and Washing University.