You don’t want to get stuck in a situation that requires you to remove new paper because of cracks or holes in the wall. Use a scraper to see how many layers are under the surface wall covering. If there are more than two, you’ll have to add extra time to your project to get rid of unwanted wall coverings.
A secret weapon to removing old wallpaper is fabric softener. Mix equal parts fabric softener and hot water in a bottle, spray the surface until saturated, then wait 15 minutes for the fabric softener to work its magic. After 15 minutes have elapsed, old wallpaper will peel right off, and you can use a paint scraper for any stubborn spots.