I got this tip from my wife..............After the pain in the butt process of using a blow dryer to remove a sticker, you're usually left with that sticky residue. I used to use Goof-Off, which works well, but can damage the finish if not used correctly. So my wife recommends Vegetable oil (the stuff for cooking) just put some on a rag and rub away, after a minute all the residue is gone and no harmful chemicals to ruin the finish.