Several times a day. I use a Kakeibo (spending diary), fridge meal planner, daily to-do list and have a notebook in my handbag(s). I take notes during work and have a project-based system for those which is just a glorified ring binder.
I used to do proofreading and I still annotate books I’m studying, with a 4-point pen. Blue for first reading, pencil for things to look up, black for cross-references, red for academic opinions.
But I take pictures or screenshot stuff I see on t’Interweb. I’m not a complete Luddite!