Use fresh nail polish to dissolve the old polish, then wipe it off quickly with a cotton pad or tissue
Soak nails in warm, soapy water for several minutes, then gently rub the polish off
Apply hand sanitizer to a cotton pad and rub the polish until it loosens
Use rubbing alcohol on a cotton pad and wipe the polish away
Apply deodorant spray to a cotton pad and rub the polish off
Use perfume or cologne with high alcohol content on a cotton pad and wipe the polish away
Apply a small amount of white vinegar mixed with lemon juice, then rub with a cotton pad
Gently buff the nail surface with a nail buffer to remove remaining polish
Wash hands and moisturize nails after removing the polish