Sublime Text. Nothing is faster and low footprint to track projects and meetings than plain text in sublime. Separate text file per project. One each for recurring meetings (e.g. team meetings, 1-on-1s, etc). It’s my personal knowledge base and record.
Outlook. for screenshots. Sometimes I email myself to keep a record of things. Also for small attachments.
Keynote NF (Windows only) just for the hierarchy. Only for light todos. Nothing more goes in. Delete nodes few days after done. Visual hierarchy is very useful. Never go beyond 2 levels.
Printer paper (standard US Letter) folded in half. I keep 3-4 under my keyboard for immediate tasks and diagrams.
More than tools, its how I use them.
All my text files have the name YYMMM-topic.txt. Super easy to find visually. YYMMM is date when I created that file. I put a date around any new topic. Sometimes a few days later.
Headers
—---------
to draw my attention.
[ ] Checklists
[ ] for pending tasks
[ ] at the top of the text file.
I find a tree with dragable nodes (in Keynote NF) useful for todos. Much better than a lists.
Never use styles (bold, underline, etc). They will get destroyed moving between systems and good editors are bulky.
Stopped giving a damn about backups or cross device syncing. I just copy and paste text fiiles every few days. Emails are backed up by corporate. Don’t care about todos. Paper gets dumped into a box. File useful stuff into a folder when it gets full.
On paper, I just draw small connected graphs. Each page has 3-5 big letter words, circled. Smaller text surrounding each topic. Never more than 30 words per page. Use it mostly when I am learning something new. Or brainstorming.
I take pictures of these on my phone if I want to think more.
Finally, I use Google Docs for personal stuff. Same luddite principles apply. Except I love how I can create headers in each doc and have a table of contents generated.
Thats it.