Make those park permit stickers more removable with Sticker Shields. (We only have one car, so no intent to use one sticker for multiple vehicles, just wanting to make year-to-year changes easier.) I dreamt of a product like this a few months ago. But I didn’t think to go look for it until prompted by lifehacker. Actually, the comments at lifehacker are more useful than the product itself, lots of ideas for making stickers more removable.