This is good advice. Just a few days ago I randomly stumbled upon a youtube video where someone was using — blast from the past, here — a hunk of green bar line printer paper as a big scratch pad to write on. It made me wonder how I ever got out of that habit. That stuff, when it was ubiquitous, was the best scratch paper ever, and I used to do it all the time when I was young and, one would think, at my cognitive peak. Maybe falling out of that habit is part of my percieved decline.