There is a product designed to make master copies for record keeping. It is made of white plastic and can be run through almost any copier or laser printer. The copies are permanent and virtually indestructible. I have used them to make PSK cheat sheets and the product works perfectly. I left my package at home, so I will have to wait until tomorrow to post the manufacturer and product number. It maybe an AVERY product, I know I picked up mine from STAPLES, so it should be available at many of the larger office supply companies. Pete