It really depends on your work. If you're doing mundane work, keeping notes is just busywork and doesn't really have a payoff.

But if you're constantly trying to solve novel problems, and have episodic ideas that are half-baked, writing notes -- without trying to organize them first -- can be really powerful. For me, I just write them in Logseq and tag them with a few hashtags like #topic1 #topic2 #topic3. It doesn't have to be a perfect tag, just tag it with all the topics you think are relevant.

From time to timeI click a hashtag and revisit all my half-baked ideas -- periodic revisits and curation is key -- I surprise myself when some peripherally connected notes coalesce into a real idea. (Logseq makes this easy because each note is bullet point that can be tagged, and clicking on a tag is like running a query)

This is called the Fieldstone method. (conceptualized by Gerard Weinberg). It's a very useful approach for writers because it recognizes that the best ideas are episodic and don't all come at once, you have to gather the "stones" over a long time before something gels.

https://www.amazon.com/Weinberg-Writing-Fieldstone-Gerald-M/...

I've used it with great success over the years (both at work and in my writing).

also i always recommend my idol jerry weinberg https://www.amazon.com/Weinberg-Writing-Fieldstone-Gerald-M/... it's not his best book, but yes, he was one of us (nerds, geeks, technical people, hacker, ...) and he had writting figured out.

Gerald Weinberg has written a wonderful book "Weinberg on Writing" http://www.amazon.com/Weinberg-Writing-Fieldstone-Gerald-M/d... where he outlines his "Field Stone" method. It's an approach that likens writing a book to constructing what the Irish call "dry stone fence." You write capsules and modules that you have energy around and then gradually re-work them into a narrative once you have a good understanding of the topic and how you want to proceed. He also ha a blog at http://weinbergonwriting.blogspot.com/ devoted to his thoughts on writing. If you are unfamiliar with him, he is a bestselling technical author (and now fiction) who has written more than 40 books.