I think Lawn is probably more right than we want to admit to ourselves. My local AZ just has a cart sitting right inside the door, that is NOT clearly marked USED OIL ONLY, and so I try to make it a habit to hang on to extra milk jugs and windshield washer gallons, and try to put my used oil into those whenever possible. Nobody's going to walk past a cart full of milk jugs and inadvertently pay for used oil...
Nice save story, OP... this is one reason why you see many on here clear out a shelf when their favorite oil goes on sale/clearance. I've got 18 OCIs worth of oil and filters on the shelf, and even now if I find a good Pennzoil sale I will buy more. Buy a couple, practice FIFO to keep stock fresh, and buy more before you open your last jug
Nice save story, OP... this is one reason why you see many on here clear out a shelf when their favorite oil goes on sale/clearance. I've got 18 OCIs worth of oil and filters on the shelf, and even now if I find a good Pennzoil sale I will buy more. Buy a couple, practice FIFO to keep stock fresh, and buy more before you open your last jug