3: Remove Old Stickers
Many drivers have put a sticker or decal on our ride for a time or two. But when it comes time to remove these from the windows it can be a pain. You don’t need to scrape and cause damage to get rid of old stickers. You won’t even need to use harsh chemicals. Instead, there’s a better solution for doing this (via Family Handyman).
All you need is an extension cord and a hairdryer, what you’ll do is heat up the stickers for 20 minutes. The hairdryer will cause the glue underneath the sticker to become moist and it will end up being removed. This works for regular stickers and the more complicated decals that you get from the auto parts store.