Trade your old books for new ones!

So, my cousin, Tara, told me about the greatest site ever!!!! Swaptree.com This site allows you to trade your books, cds, dvds, & games (xbox, wii, etc) for other items. I am so excited about this! I usually buy best sellers to read when I go on vacation, but then I don't like to read them again and they end up taking up much needed space on my shelf. Now, I can trade them and get new ones for my next vacation...for free!!! Yay! The only thing you do have to do is pay for shipping.