For a long time while following the process of remembering every day that passes, I had a policy of not keeping a diary and not making notes. I thought it would be good for my discipline to rely on my memory alone.
True, I would sometimes have to look through photos on my phone or emails with travel details to help me recover the images for particular days if I got stuck, but generally the mental process alone worked.
Prior to starting this journey, I had been a good journal keeper, not writing every day, but filling in the gaps whenever I picked it up. A few years in, I wrote my missing journals retrospectively, using the recollections my memory tags gave me.
Then in 2017, when my mother's Alzheimer's progressed to the point where I returned home to help my father and sister care for her, until that was no longer possible at home, I began to keep a diary of what was happening. The purpose was to learn what did and did not work in responding to her fears when she did not know us - and did not believe that she had a husband and children - and was scared of strangers in her house.
I have kept that going and write at the top of each page a prompt for the image for my memory tag.
This has had a downside. This year, I have fallen out of the habit of reinforcing the tags for the recent month with a review morning and night, and selected days from the past 6 months. I've told myself I can pick up my diary and catch up. To some extent that has worked, but it is not as effective as when I stuck to my routine.
It means it is somewhat harder to recall every day of recent months than the days from 2012, my first full year of this process. Yet, I suspect without the diaries, I would be lost by now.