Yes, do! I just took Susan Khalje’s Couture Dress class on craftsy and she showed us how to use those large pieces of waxed paper to quickly and accurately mark both sides of your pattern pieces. It was life changing! I had tried those tiny blue Clover sheets you can buy at Joann, but found them difficult to work with and see and gave up on it. Then I tired a bunch of other methods, all of which seemed to lack a little accuracy. Now that I’ve seen how to do it the right way, I can see it’s the very best way and I think I can use this for non-couture sewing projects. The down side is that there is only one store to buy those large sheets and they have a minimum for online orders, which is about 12 sheets of waxed paper. It was only $35, so I did it anyway. I think I have a lifetime supply of this paper!