If you're working on a home extension, garage conversion, or just remodeling a small basement, you will be using drywall. That's inevitably going to expose you to dust. It's not unusual to see people ...

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 ...