Didn't mean to sound snarky with my comment, sorry about that! I would seriously recommend archival-quality in that case too, Micron pens are pretty affordable! You could of course go wild and create a wonderful setup that's a bit pricier, but it's very easy to do with simple pens too. Micron and legal pad should get the job done for personal notes, and beyond that probably look at scanning/digital options.
no one asked, but frixion pens on a legal pad and taking photos with a quick iOS shortcut makes it very simple to win all around.