I write my passwords on paper in code, like my dad taught me to do.

However, just a personal anectdote, my uncle passed suddenly and he had written all his passwords (not in code) on a spreadsheet with each account, which he then printed. I promise you, this single piece of paper was one of the most helpful things I could've asked for in sorting out all of his assets. It was a genuine lifesaver. Now I often think that maybe I should be sharing my password with an S.O. or someone else close to me just to make their life easier if I were to die tomorrow.