In case you’ve never tried peel and stick wallpaper before.. here are the basics you need to do before you ever peel back the paper. 1. You MUST clean your walls!! Or you risk ruining the adhesion factor! Remember is a giant sticker not a patch of permanent glue! 2. Measure twice cut once! Measure the walls vertically and horizontally so you know your first piece length and center line to work from. 3. Remove any hardware,wall pates, or electrical covers from the wall. If you want, you...