I use an eraseable highlighter too, for the larger projects, especially if there are many color changes. I really like the idea of a post-it note - thanks everyone :)
I use highlighters to highlight all of one symbol, so that I dont miss some. Then I mark the blocks Ive stitched with a pencil. I make a blown up copy of the pattern so I can see it better.
It depends on the project, small easy stuff, I just stitch from a copy. I use a magnet to keep my place. I bought a ruler but like the post it paper better.:D
I always make a copy of my original pattern & the harder parts I crop & enlarge, that way I can use the highlighter without worrying about my treasured patterns which I keep in plastic sleeves in binders.:):)