Have any books you don't want anymore? Brian found a great way to make some extra money off of books that you have at home and don't want anymore. It's called Cash4Books, and they will buy (nonfiction only) books from you. You can enter the ISBN of your book to see if they are currently buying it; they will pay the shipping to get it to them, and then send you a check or pay you via PayPal. We sent off some books last week and got $12 already! It looks like the biggest money-makers are textbooks, so if you have any left over from college and are ready to part with them, this is a great way to get cash for them.