I went to my local autozone to pick up some brake fluid. When I walked through the car care aisle, I saw that UWWA was being sold for less than half price, $6.99. UWWA still comes with the $5 dollar rebate too, so you are essentially paying $2 for a bottle of UWWA.
I bought two bottles, considering buying more.
Also, you don't have long, the sale ends on August 20.