[danohuiginn]

I do something like this, though generally just in the situations where I don't have my notebook.

For me, it's a bit more adhoc than the suggested above. Recent uses: jotting down measurements of some furniture; writing for somebody the name of a book I was recommending them; shopping and todo lists; doodles and sketches. notes tend to be odd phrases from conversations. The reviewing is minimal -- under 10% of what I write needs preserving, the cards mostly get a quick glance and then go straight into the recycling.

I use the same index cards when I'm writing something, for paragraphs or ideas which I can visually arrange on a table.

I've been doing this in some form for a couple of years, but just as a low-key background thing. For me it's just the minimal viable equipment for being able to write things.

I could use my phone for almost all of this, but index cards are a lower risk of distraction.