I feel like improving my note taking has helped me continue improving my development speed and quality when it was at risk of stagnating. Not by way of document

I feel like improving my note taking has helped me continue improving my development speed and quality when it was at risk of stagnating. Not by way of documentation (which I do use it for) but more for tracking multiple streams of work in multiple levels of detail. I keep a highly nested todo list of things I'm currently working on where I can track incoming tasks ("reply to Bob about XYZ") as well as split current work into subtasks ("don't forget to add a test for edge case ABC"). I find the splitting really helpful because as you dive into a complex piece of code that you want to change or add a feature to you will "see things on the way down" that need updating but updating them is blocked on _other_ changes you need to make. A todo list helps track all of this stuff and ensure it does not get forgotten.