How do you organize your prep notes on paper?

Title says it all. I've tried obsidian, google docs, dropbox paper, one note, probably a zillion others...despite the undeniable utility of these applications, I find using my laptop impossibly distracting, and the usefulness doesn't matter at all if I can't actually prep anything! Not to mention, when I type up my notes I seem not to remember them as well, and it forces me into a more linear mode of thinking. Typing allows me to be way too verbose as well.

However I'm not sure how to organize all my scribbles into something useful during a game and useful to look back on when I'm prepping my next session. I know there have got to be some other paper-only GMs out there!