If you love Barnes & Noble, or need a gift to give to someone, this is a great deal! Groupon is offering a voucher of $20 to B&N for only $10! There is a limited amount available, so get yours as soon as you can. The voucher expires April 11, 2011.
If you use your Discover Card, you could also get 20% cash back.
Thanks, Common Sense With Money.