Good question 🙂
For me it’s mostly the small, in-the-moment things:
- a link I want to check later
- a quick thought or idea
- a snippet of text or code
- something I see on my phone that I don’t want to lose
- sometimes even just a reminder or “I should look into this”
Not really structured notes — more like “things that appear during the day” that I don’t want to think about organizing right away.
That’s also why tools like Joplin or OneNote never quite fit for me in that specific moment — they work great once you sit down to write something, but not as much as a quick, frictionless entry point.