My notes are a lifelong body of work
I consider my notes to be a lifelong body of work. The benefits of note taking are very high (see The importance and value of note taking for me). Additionally, there is not much else that I can put energy into that can have a guarantee of being a lifelong project.
Therefore, my notes warrant a high investment. It's worthwhile to put care and time into both writing and organizing / tending to the garden of my notes.