This is a great technique for dividing paper (or anything else) into equal parts
I learned this trick some years ago from a workshop instructor and have used it for years. This video reminded me of this nice little hack, so I'm passing it along.
Have you ever tried to divide a piece of paper into thirds? It’s difficult. That's where this trick comes in handy. Paul at Dudecraft has made an easy to understand video demonstrating this technique. It’s especially handy if math isn’t your favorite subject. Go watch. It’s worth it.