Originally Posted by hiker472
WD-40 works good for that. Just spray it on and make sure the whole sticker is wet and let it sit for a little while. Then it will wipe right off. Depending on how much glue is on the sticker will determine if you have to spray it up again, but more often than not just one time will all that's needed.
And GooGone is great for any glue residue that's left.
I used WD-40 to remove melted crayons out of car upholstery Vi a steam cleaner. It got it all out even the pigmentation.