Everything that the eyes fall on right from the moment one wakes up can be treated as a clue to do or learn something.
Following through on jobs and conversations day after day is necessary. What you did yesterday may just be the most important clues for doing something today. That makes writing what you did yesterday a good self-cluing technique.
It is easy to self-clue. Though it can be boring and cumbersome too, very much like self-help is.