For American Express cardholders, American Express offers a $10 statement credit when you purchase $200 or more in American Express gift cards. (After logging in, applicable cardholders can activate this under "My Offers" at the bottom of the page.) A $3.95 processing fee will show in-cart. Coupon code "DGPCM" cuts that to $0. That's the best such statement credit we've seen for American Express gift cards. Deal ends July 30.

Note that the offer may not be available to all American Express cardholders.