I am REALLY getting a subtler and more profound feel for what a “trusted system” means: it has to serve as a complete “outsourcing” of the task tracking function that my brain used to perform. It is not a fancy way of assisting my brain in remembering the things I have to do; it is a complete replacement of that mental function by an external physical object.
Tasks that are neither automatic (shaving) nor attractively pleasant (eating) go into it. The point is, don’t waste your brainpower by using your brain as a task tracker.
I mean, you don’t carry files around the office with you half the day before working on them: you leave them down somewhere until you need them. Do the same with task tracking: leave it down somewhere you trust.