Yeah I've got all kinds of tricks like that. Leaving things on the ground to spell out a reminder, if you can add custom map tags or signs I'll do notes there, sometimes it's having a system like "if I'm pointing at the ground it means I am not in the middle of anything important and I need to choose my next steps"
One of my favorite features on the steam deck is the ability to take notes that sync to each game. I've wanted the ability to do that ever since Zero Escape included a notepad for memorizing clues.