Peel-and-stick wallpaper offers an affordable, DIY-friendly alternative to traditional wallcoverings. The self-adhesive backing doesn't require any messy paste, and if you make a mistake while applying, you can simply pull it off and start over. Applying temporary wallpaper isn't quite as simple as simply peeling off the backing and sticking it to the wall, though. You'll need to do some prep work to ensure it adheres properly to the wall. A few tools and tricks will also come in handy to help you get the smoothest finish possible. Follow these step-by-step instructions on how to apply peel-and-stick wallpaper to achieve bubble-free, long-lasting results.