Well I once did my own oil changes and 10 years ago I stopped. Now I am doing it for my wife and 2 daughters plus my car.It's just to expensive to have someone else do what I can do for the cost of oil and filters. Plus I am changing all 4 vehicals to synthetic. Where can I get windshield stickers for the cars. Depending on the kids to remind me is like asking the garage door a question and expecting a answer. Any sugestions are welcome. Otherwise I have been using white duct tape on the fan hood and permantent marker. I just want to look or have them look and give me the milage so stickers seem the easest way.