Years ago, I used to always have an A1 square ruled flip chart pad on my desk, would put my keyboard and mouse on top of it and would just scribble all over it all day and then throw the page in the bin at the end if the day/week.
I might try this again actually because it was fantastic for productivity. š¤
Great for finding the zone and locking it in for most of the day. Just scribble each train of thought and you can always map back 2-3 hours with god like clarity.