I've done some pretty bad things in my life. I've accidentally recycled Mr. S's favorite issue of Golf Digest; I've gone to bed without brushing my teeth; I've told Little Guy #1 I don't know where his (insanely annoying!) Little People movie went. The list goes on. However, one of the worst things I've done, by far, has been attempting to hang pictures on our 65 year old plaster walls without knowing how to properly do it. The construction genius that I am, I thought a hammer and nail would suffice. It took 2 years and everything in my power to be able to get my pictures to hang level on drywall, for crying out loud. Wrong!
So, much damaged plaster and plenty of spackle later, I know how to do it.
First, (of course) decide where you want the picture/poster/letter S to hang. Mark the wall with a dot where the nail will need to go.
Next, put a piece of scotch tape over the dot. Drill a hole big enough and long enough for your nail right through the tape.
Hammer your nail into the hole you just drilled, again right through the tape. Then hang your picture!
That's it. Really. Who knows how many chunks of plaster I (poorly) attempted to Elmer's glue back into our walls before I learned about this, but my walls can breathe easy again.