Get books for almost free!

I have started using a site called www.paperbackswap.com. You list a few books you are done with and trade with other readers for the price of postage. It's a great alternative to the 1 cent amazon book that actually costs $4 by the time you pay their postage. Just list a few books at first, and be aware that the waiting time for a book can be kind of long. I have gotten about 10 different books so far and am pleased.