I picked up five quarts at an Autozone near my office. They didn't have exactly the viscosity I need-- 5w-30 instead of 5w-20, but I'll use it in the summer. Went to another Autozone, and they did not have any clearance stickers on their oil shelves. I didn't think of it, but I should have asked the sales help to run it through the scanner, because they had in stock the 5w20 I needed.
Best part of the deal, I also got a rebate of ten bucks, so the five quarts I netted for 2 bucks each.