FWIW, here's my approach: Write it all down, immediately, wherever and however.

I've distilled this to three major places:
- Apple Notes (within folders when possible)
- Notecards on my desk. (I'm using Analog and really like them like I would the investment in a personal trainer.)
- Field Notes (for when I'm on the go and remembered to bring them and a pen.)

All this said? It is mostly the act that I appreciate.

Reference back to these artifacts is mostly met with confusion.

I'm not "writing it down to remember it now." — I'm writing it down to be reminded later that I wasn't clear enough. And that can simmer for an entire lifetime until it rears its ugly head enough that it finally sinks in.