Here is a fun tip I conjured up a while back. When Stampin' Up came out with their scoreboard, I loved the concept of the markers to hold your place. I already had a scoreboard and couldn't shell out for a new one. So I simply added markers to the one I had.
I attached a magnetic strip across the compartment door. Then I bent open the ends of some paperclips of various colors and now store them in the compartment. I can then pull out as many paperclip "markers" as I need and point them at the measurements I need. The color coding can come in handy when having to mark differing projects at the same time.
Hope this idea might help some of you.