Soak a cloth or paper towel in warm, soapy water and press it on the sticker mark for a few minutes
Scrape off softened residue with a plastic scraper, old credit card, or plastic razor blade
Apply rubbing alcohol, white vinegar, or nail polish remover to a cloth and rub the adhesive
Use cooking oil, baby oil, or peanut butter to loosen stubborn sticker residue
Heat the area with a hair dryer for 20 to 30 seconds, then peel or scrape the residue
Wipe the glass with a microfiber cloth after the adhesive softens
Use a commercial adhesive remover if residue remains
Clean the glass with glass cleaner to remove any leftover film
Repeat the process if needed until the surface is clear