Tracing patterns (Patreon)

Have started using these clear sheets to mark patterns on (that will see repeated use). It works so well! Much more rigid than printer paper, can see markings on both sides when flipping/mirroring. Waterproof too. 

You have to manually draw/trace your pattern onto it, but it's far cheaper than overhead projector paper. I think I paid $20-30 for the 250 sheets and they have lasted me for ever. It wont deteriorate like paper or cardboard.