This is not going to be news to most of you, but just so you know B & N has a pretty good looking clearance table these days. Books for $5 or $2. I think this might be more helpful for the elementary teachers, but I've gotten some steals for books to use in conjunction with units I teach or for read-alouds. I'm not sure what Borders is up to these days, but it's always worth a second to pop into B&N and browse that clearance table. You never know what you might find.