I've always been a bit of a bookworm and get through books so quickly that I am always running out of things to read! Working during the week its difficult to find time to get to the library at the weekend and I spend a fortune on books that I read within a couple of days.
This Christmas holiday I stumbled across a book swapping site called http://www.readitswapit.co.uk Basically, you list all of the books that you have read at home on the website. You can then swap them with the books of other Readitswapit members! Generally members try to send the books out to each other within a few days and use second class postage to keep costs down.
What a great way to recycle your old books as you then have lots of new (second hand) ones to read in exchange!