There are several things that work well. Test first in a hidden part. White spirit is good to remove sticky residue as is eucalyptus oil but this will also leave an oily spot. One other way is to use another sticker to help lift off the residue.
By learning2bthrifty (Guest Post)
12/12/2008
Next time use a hair dryer. the heat will keep the glue on the sticker. Sorry, no info for this time around... salad oil works on non-porous items.