Stop what you are doing and read this post. It is life changing! If you are like me and a) your walls have hundreds of holes in them from trying to hang pictures b) you dread framing your pictures because eventually you will have to hang them up or c) the thought of a measuring tape, a laser level, and eyeballing it gives you peptic ulcers, then YOU NEED TO READ THIS ASAP, POST HASTE, AS SOON AS HUMANLY POSSIBLE.
I have actually been using this method for quite some time now and I can tell you, it's easy and foolproof. It is so easy that anyone can do it, It takes about 5 minutes tops, and it is one hole...EVERY TIME! Don't believe me? Take a look:
WHAT YOU NEED
Picture (of course)
Turn your artwork over and find the center of each of your hanging mechanisms. Place little balls of sticky tack right above each of those centers. Hint: If you are hanging with a wire, pull up on the wire to find the center.
For artwork with two hooks, take one end of string and attach it to one of the pieces of sticky tack. Pull the string taut and attach it to the other piece of sticky tack with the leftover string hanging free. Hint: For artwork with one hook you do not need the string.
Pick up the string and place it on the wall using the sticky tack. Try to get it as straight as possible and make sure to pull it taut and stick it well.
Make sure that the string is straight using a level
Use a hammer and nail to make a hole in the wall through the center of each of the balls of sticky tack...
...insert your anchor (optionally) and finish hammering the nail into the wall!
IMPORTANT: If you are installing something heavier than a few pounds, make sure you use a stud finder to make sure you are not hanging it into straight dry wall!
Carefully hang your beautiful artwork
Double check that it is straight with your level. It will be. Like I said, this is foolproof.
EXTRA: Use a pre-marked piece of wood or paper to measure 1, 2, or 3 inches if you plan to hang up multiple pieces of artwork HINT: Make sure that you account for framing with your spacing!
THAT'S IT! Your life is just a bit easier now :)