Well, I went to Office Max and found this presentation folder. It has several clear page holders and you can add more if you need them. It has two snaps-- one for when it is closed and one for when it stands up open for use. When open, it makes a triangle shaped stand, which will not fall over and the spine is made to accomodate this, so it will not break.
I use a colorful, plastic coated paper clip to keep my place on the line that I am working on. Voila! A better way to follow your patterns!