$50 Gift Certificate/credit to purchase items through Groupon.

Each day, Groupon features an unbeatable online deal on the best stuff to do, see, eat, and buy in your city. Groupon negotiates huge discounts—usually 50-90% off—with popular businesses. They send the deals to thousands of subscribers in their free daily email, and they send the businesses a ton of new customers.

www.groupon.com