I stopped spending time and effort when I realized how little I used my organized notes. Specifically, I used Evernote and had my personal information wonderfully organized, but rarely used it. Now I use something simpler:
For work: about 20 Emacs org-mode files for various topics. I use grep to find stuff.
For personal: at different times I have used Apple Notes or Google Keep to maintain todo lists, shopping lists, notes on present and future writing projects, planning travel, etc. Both support search. I spend very little time writing these notes and they are useful. A few times a year, I spend a few minutes deleting notes I don’t need anymore.
Anyway, thinking about cost/benefits, not spending much time organizing my own information makes sense to me.
The turning point was spending months of part time hacking writing my own Evernote’s clone in Clojure in the backend, a Firefox plugin, and a web app. It was a fun project, but mire fun writing it than using it.