To remove sticker residue, mix water, vinegar and hand-dishwashing liquid. Rub the residue with the mixture, soaking it by placing a paper towel saturated in the solution over the residue. Then rub away the residue. Test the solution on an inconspicuous spot before applying it to the sticker.
- Mix the solution
Mix a small amount of dishwashing liquid with equal parts of vinegar and warm water. Test the solution on an inconspicuous spot to ensure it does not discolor or otherwise harm the finish. Vinegar is safe for most plastic, glass and wooden surfaces. Use a paper towel to apply the solution to the residue.
- Soak the residue
Soak a paper towel in the solution, and leave it damp. Spread the paper towel across the residue, and allow it to sit for five minutes. If you cannot move the object from a sunny location and the paper towel is drying, rewet it to complete the five-minute soak.
- Rub away the residue
Rub the residue to remove it. If the surface is glass, use a razor scraper to remove the residue. If it is plastic or wood, use a plastic putty knife or the edge of a credit card to scrape away any residue gently.