How do I remove a bumper sticker from my car?

I would probably use a solvent like Goo- Gone and slather it all over the sticker for ten min. trying to get it saturated at the edges. I would then use a razor blade or razor paint scraper to gently peel away one corner and use more 'goo-gone' to break up the sticky residue. I did this and it worked pretty well on a plastic bumper... Usually, if the sticker has been on for awhile it will be cracked from the weather and will come off in small bits. This will make the job easier, but it might be a bit tedious.

A hair dryer or heat gun ( on low) will work. Just get it warm, and take your time.

You could place a warm wash-cloth on the bumper sticker for a few minutes. This should loosen up the glue on the back of the sticker enough for you to pull it off, without pulling any paint off. Good luck!

wd40 is a great adhesive remover. Don't know how well it would work on really hardened stuff, but worth a try.

GooGone. Its nontoxic and smells nice

Fact from fiction, truth from diction. I would avoid Goo Gone, Goof Off or anything harsh like that. I would go with either a blow dryer or heat gun on low slowly peal it back or soaking it in lemon oil (works great on antiques so it should not harm the paint) if there is any sticker glue remaining use some denatured alcohol you can find at Loews or Ace and the left over glue is gone like that.

WD-40 works great. Spray some on, wait a while, rub it off. Do not use any sharp items to scrape off the sticker or you will damage the finish!