to many hobbies?

I was just looking at my list of things i did to hone a razor. How many strokes, this, and that. On the other side of the paper was a triangle with some arcs drawn through it and some squiggly lines??? I have been thinking of included angles etc but that did not make any sense... Within a few seconds i realized that they were drawings of how a transducer works and creates an arc for a fish on the screen of a locator. I think maybe the solution would be to get more scrap paper and toss it away between thoughts. LOL

Tim