Here is a small tip that I learned the hard way. You might have already figured this out, but sometimes I learn the hard way.
The white paper is to show the pin only hooked to the top side, the second pin shows where I have buried the tip to the back side.
The tape measure that I use is made out of paper, but I am sure this works if you pin anything to your work. I have found that if I put the "point-y end" of the pin to the back side of my work that I will not accidentally rake my arm across the pin and stick my self. A simple thing, you would think, but as I said, a lesson learned!
And I am sneaking up on another 36 inches done!!!!!!!!