I save into several text files (20 files) ... one big one ( >100k lines) for anything software related organized using labels like

curl tricks _____________

      something here about curl

then most anything else goes into a second big file mostly grab bag ... then I have other specific files for : travel, nyc, todo, videos, etc

then from a terminal I can grep into each using say :

grep -B20 -A20 someSearchString workfile

in above the parms A and B return the surrounding lines from the matching line of txt file ... then to further filter output I sometime pipe output of above grep into another grep

using this process I find I can retrieve anything I have stored I just need to save each item into a meaningful label using above xxxx tricks ... this process works just fine ... have been using this for past decade or more

naturally all of these files are auto backed up to the cloud ... currently using mega.io yet previously was using dropbox

PS. I use a ubuntu linux laptop/desktop