I'm reluctant to click on the link, but I will say that DH buys coupons to Lowe's on eBay. He had better luck getting Home Depot discounts by getting a HD credit card.
Yeah, the Lowe's coupon is great...that's on our list :-)
You can even instantly buy digital scans of the coupons WHILE you're in the store, and they'll scan right from your phone. So even if you're not someone who plans these things in advance, you can still cash in.