I KNOW I have posted about Paperback Swap before, but…
If you love books you need to be a member of Paperback Swap. According to the website I have saved over $ 886.50 by using this site to swap books! Hurrah! I add books to my wish list every few weeks (months) when I remember and then when the book is entered into the system by a member, and I’m the next person in line…book for me!.Also, I love that they allow for you to pay for postage through the webpage and print out labels, getting to the post office is somewhat of a pain for me so this works well.
Are you a member yet? If not, I highly recommend checking it out. And remember who sent ya there *allthingsjennifer when signing up (thank you!)
If you are a member…let me know so we can be friends.

I also use swaptree.com,,, it does three way trades and also trades CDs and DVDs so depending on your mood you can vary what your offering and also looking for.
But it gets hugely busy, I swapped like 30 books in the first weeks so buy your mailing bubbles quick and prepare to pause your account when your at capacity. I’m still reading those books.