Unfortunately, I don't know if it's national, but it'd be worth looking into. They clearanced Vroom's
tire shine for 2 bucks/bottle a few months back and I only picked up on bottle...now my Target doesn't have anymore. That was pretty good tireshine if you knew how to apply it right!
Edit: I believe in the Autopian Curse...you know it's bad when you need to pick up a few parts for your car to get it running straight, but end up using that money to buy a PC, pad kit, and products. That's not even the start of it either.