Don't just paint over your problems (that won't fix anything). Grab some spackle and a plastic knife to even out holes on your corner or dents in your wall — then add paint on top of your smooth-as-can-be wall. Get the tutorial at Behind the Studio
How to Fix Drywall Holes. Cut slits from the sides of the hole, then thread a wire through a tin can lid and slide it in. Pull the lid flat on the inside of the wall, and hold it in place with a stick.
How to repair drywall damaged from wallpaper removal
fuzzy brown paper from drywall damage Sometimes walls are not properly sized before wallpaper is installed. This makes wallpaper removal difficult. Often times you will find several layers of wallpaper installed on drywall.