We have a local art center that holds a huge book sale every year. There's almost always great stuff & tons of bestsellers from 5-10 years ago. I bring home a box of books every year but too many of them stay unread. Last year I started a 2nd box right away. Take a book out of box 1, read it, put it in box 2. Box 2 goes back to the art center for this year's sale. I figure if I really want to read it again, it will show up again in a couple of years.