Stopped by Home Depot today and they had a sign just inside the door saying that they were giving 10% off everything in the store through July 4th for people who are now or ever have been in the military. All you need is some sort of proof of your service (Military ID, DD214, pay stub, etc). I was able to use an old ID that I still carry with me even though the ID expired in 2000. Basically, if you've ever been involved with the military in any way and can prove it, you get 10% off.
With this being a long weekend for many people and a time when alot of us are working on projects, it's a great time to stock up.
As far as I know, this is nationwide, but I suppose it could have been a local thing. I saw it at the Joliet, IL store.