QuickRewards.net (aff) has a gift card promotion going on through Sunday: you’ll get 7% cashback on the purchase of any quantity of $25 Home Depot gift cards. These have to be used in-store. The highest cashback rate you can get for online purchases at Home Depot is 4%, according to RewardsDB (and generally the purchase of gift cards is about half that).
The benefit of buying the GCs (which ship for free) and using them in-store is that you avoid having to pay shipping on bulky home improvement items. Can you imagine how much it would cost to ship a toilet…or heck, a bathtub? 
QR members can also cash out $24 of account earnings for a $25 Home Depot GC through Sunday.
For the purposes of full disclosure, I’m currently a consultant for QuickRewards.net. I’m open to sign a non-disclosure agreement to contract elsewhere as well if any other rewards programs are interested — email me and we can discuss your needs in depth.
