Have you ever spent your time measuring that exact location for a picture or that prized artwork just to find it's not really where you wanted it ? Well, here is one solution. Find a piece of wood about 1/2 thick, 1 1/2" wide and the longer the better I chose 32" long and a wood screw that will slightly protrude through both sides of the wood when inserted.
Step 2: Picture Hanger
Mark the center of your board and about 3/8" from the end. This is where you will drill a pilot hole for your screw. Remember pilot holes are smaller that the diameter of the screw. The purpose is to relieve the stress on the wood so when the screw is installed the wood does not split.
Step 3: Picture Hanger
Here is a picture of mine after the pilot hole was drilled.
Step 4: Picture Hanger
This is what it looks like with the screw installed. Notice the screw head does not ate flush and the screw slightly protrudes out the other side.
Step 5: Picture Hanger
Now hang your picture or artwork on the head of the screw. Use the wood as a handle to hold the picture. Have a friend hold the picture in position while you stand back and instruct on left, right, higher, lower, etc. once the picture is where you want it, apply firm pressure near the top where the screw is located. This will leave an indention in the drywall indicating the placement of your nail, screw or tack. This is a simple way to take the guesswork out of hanging pictures and saves you from having to patch unwanted holes in your drywall.