http://mashable.com/2012/03/15/amazon-gift-card/

Quote Originally Posted by Mashable
On Tuesday, March 20, Amazon will let consumers buy a $10 gift card for $5. The catch: They have to go to amazonlocal.com to redeem it. The card is good for any Amazon merchandise, though. The retailer is limiting buys to one per customer.
A small amount of money but still free!