Peel off as much of the label as possible
Soak the area in warm, soapy water
Rub with a cloth or sponge
Apply rubbing alcohol to the adhesive
Use white vinegar on a cloth
Apply cooking oil, baby oil, or peanut oil
Let it sit for a few minutes
Scrape gently with a plastic scraper or old card
Wash the surface with dish soap and water
Use a commercial adhesive remover if needed
Test any product on a small hidden area first
Dry the surface completely