Cut a 6-inch-square piece of drywall from the damaged part of the wall. Make sure the failed screw holes are in the center of this piece. We recommend that you make these cuts with a utility knife.

Be sure to leave a bit of space between the screw's head and the wall so the picture's wire can be hooked over the screw. Hang the picture. 8. EVEN OUT YOUR HANDIWORK.

Mounting a power strip or some other electronic doodad? Use a piece of masking tape to align the mounting holes with your wall screws, and everything will line up perfectly.

It's possible to hang shelves without tools, screws, or scuffs. This will cause some minor damage to your walls that you’ll have to reckon with when you move out, but it’s an extremely small ...