Used to have good coupons and cashback. For Home Depot, I go now to savingstar.com. At least I get 4% cashback. Use shopathome for other sites.
I use ShopAtHome.com most of the time for cash back. But when there are no coupons or cash back available, I always find it at Ebates.com. They give 1% for Home Depot purchases. Not much, but something!
With the amount of money u spend there should def be cash back or its kinda useless