On a trip to the Philippines last year I forced myself to try and keep detailed notes on aperture/shutter speeds, shooting conditions, body, lens, and film speed on each roll. I had 70+ rolls of film with me, and couldn't develop until after the trip. All my gear were non-CLA'd early 1960s or older used equipment, and I wasn't sure if they'd work consistently under tropical conditions.
Luckily the gear held up, and having the shot info made developing a much easier job. Starting with the earliest roll I was able to evaluate my results and make appropriate changes in developing times and methods.
I no longer really need to note down aperture & shutter info, but I still log shooting conditions, body & film speed. Comes in handy because I always manage to maintain a developing backlog of 10 rolls at any given time. My memory sucks, so if I didn't have this info I wouldn't know how to develop my rolls.
-Raymond