When you peel off old adhesive or self-sticking picture hangers, you often tear off the top layer of drywall paper, leaving fuzzy brown paper exposed. If you try to patch over this without sealing ...

For drywall sanding, you'll need a hand sander, a package of 150-grit drywall sanding paper that's precut to ... causing extra repair work. One tip is to keep the sanding head angled slightly ...