Half Price Books Coupons

Half Price Books is offering some great coupons for this week only:

March 22-23 - 40% Off any single item
March 24-25 - 30% Off any single item
March 26-27 - 20% Off any single item
March 28 - 50% Off any single item

*I have been thinking lately of trying to take some books there to sell...have any of you used them for this before? Do they pay much? We have a few boxes of books that we never use in our garage...

Thanks, Penny Pinchin Mom!