Circle members: 2
A lot of travelers just line their old Travel Guides on bookshelves, where they do little more than collect dust. If you're planning on revisiting the destination in the near future, hang onto the guidebook, obviously. But if you won't be traveling there again anytime soon, perhaps you'd be better off putting the book to better use. These are valuable to other people who want to travel. Put these valuable books back into cirulation..SWAP THEM!