Only place they've been at recently, and I'm not sure if they're still there or not, is at the post office.
The moving kits you can pick up there have coupons in them for Home Depot and other stores, and the last time I had seen one, there was a 10% off coupon in there for numerous types of items.
Swing by your local post office and pick one up. You might see the coupon in there.