Sometimes a wall can get a large hole or a section can be damaged by water or other causes such as having a little too much of the sauce. Here's how to fix it without a drywall repair kit:
Here's what it will take to fix a large drywall hole:
Scrap piece of drywall
Utility knife
Pencil Keyhole saw
Small board
Flathead screws
Screwdriver
Spackling or wallboard joint compound
Putty knife
Sandpaper
Primer and paint
Paintbrushes
Step 1: Cut scrap piece of drywall with utility knife into square or rectangle. Scrap piece should be a little bigger than hole or damaged area. If you don't have piece of drywall, purchase drywall patch from hardware store. Set patch against damaged area, and lightly trace around it with pencil. Cut out outlined area with keyhole saw. Keep saw cut on inside of traced line so hole in drywall will be exactly the same size as patch.
Step 2: To hold wallboard patch in place, install small board about 6 inches longer than long dimension of hole. Put board into hole, center it horizontally, and hold it firmly against inside of wallboard. To help keep it there, fasten ends of board to drywall with flathead screws driven through wall at sides of hole; countersink screws below surface of drywall.
Step 3: Use spackling compound or wallboard joint compound as glue to hold patch in place. Spread compound on back of drywall patch and around edges. Set patch into hole and adjust it so it's exactly even with surrounding wall. Hold it in place until compound starts to set. Let compound dry at least overnight.
Step 4: Once compound is dry, fill patch outline and cover exposed screw heads with spackling or joint compound. Let dry, lightly sand area, prime, and paint.
Now you should be ready to tackle those unsightly holes. (that's what she said)