From August 1 through September 7, 2008, Discover card holders will be able to earn a $10 Discover gift card for every $100 they spend using their Discover Card at any of 45 participating shopping malls nationwide. Earning the gift cards is quite simple–just shop at a participating mall with your Discover Card, then present your original receipts to customer service by September 7, 2008. There is a limit of 5 gift cards that can be earned per account during the promo period and supplies may be limited.

To see the list of participating malls, see this link.