[otterpro]

I love pen and paper (and a big fan of Bullet Journal), but for keeping a coding journal, I keep mine digitally since it is easier to add entry, edit and search. Most code snippets are easier to copy and paste rather than writing on paper and then typing it back later. I can type much faster than write with hands. There's plenty of good apps/editors for note taking: Vim (what I'm using), Evernote, OneNote, Emacs with Org Mode, Notational Velocity, etc. Jupyter is also another alternative for coding journal.