I have a really awesome hack for you! I wanted to show you all an easy peasy way to hang any picture that has two or more hanging points WITHOUT a tape measure.
It's very important that you line up the tape as straight as possible. I line the tape along the point of the hangers in the back of this picture. In this case it's a shadow box of vintage hair tools.
All done. It's SO, SO easy guys. This works for all those weird hangings that just are not easy to do with out a tape measure. See Ya soon!