To keep my ruler from slipping, I am applying some Elmer's cement glue to the back and letting that dry overnight. It's just a little tacky, just enough.
The Creative Grid rulers have etched spot on their backs and don't slip as much.
Don't cut with a person who is hard of hearing and wants you to look at them when you say something. I looked up from my cutting and sliced off the edge of my left index finger. What a mess!
The person was so rattled that she could not help me. We finally found a doctor and he said I had not cut enough off, not enough to sew back on. Took forever to heal but I did miss the nail.
Marcia