I draw a lot to figure out engineering details. I used to make beautiful drawings in diagramming software (draw.io and the lil). But man, it took a lot of time. Now I scribble on printer paper unless it’s something I plan to share.
I just counted, 11 notebooks (b5, 60 pages) in two years, so just about a new notebook every 2 months.
Funny thing is, coworkers will now ask to use my pen and paper to flesh-out something together, as I'm certain it's the only paper and writing utensil in the building.
And yeah, draw.io or even an ipad with a whiteboard app aren't good replacements for me.
You remind me of a joke that with good employees you need only one pen and they can all write.
Curious. My first thought would have been "... because the line is physically displaced from the pen, of course"; but that doesn't apply there.