I found this link and coupon while surfing for free samples at WalMart.com. Hungry-Man has a new XXL Sandwich. Here is a link to a $.75 off coupon. It expires on June 28, 2009 and it does not say Do Not Double, so it may be a really good deal while Harris Teeter is tripling.
Note: Don't try to hit the back button to print a second coupon, it will error out, but it does open the coupon printing in a new page, meaning the linked page is still open, simply go to it, and hit the "Click Here for $0.75 off 1 XXL Sandwich" to print your second coupon.