Before sanding, round up a shadow light, a wide taping blade and a pencil (not a felt tip pen; it bleeds through paint). Map all wide seam work on ceilings and walls to plan how much to sand each seam ...
There are few home improvement tasks less pleasant than sanding drywall. Wet sanding can make it just a little better. If you own a home of some sort, you are familiar with how expensive any sort of ...