Today you can purchase a Groupon for Barnes & Noble (actually it looks like it's available all weekend) for $10. This ten bucks gets you $20 worth of books. Looks like it's limited to one per person, but that's a fantastic deal since it's going to let you use it on sale items too. It's valid at all Barnes & Noble stores except for Barnes & Noble college stores and websites. So, you can use it at BN.com and you can use it at Bookstar and B. Dalton locations. Those are explicitly listed as cans in the terms. What are you waiting for? Snatch yours up now! Oh, and Happy Friday!!!