My approach is that if you "multi-task", you don't do any of the tasks to the best of your ability. However, much of my work involves computers that may take some time. So if I "initiate" a time consuming task and do other things, I can give the other task my full attention. Pre-planning is paramount to what I do. I have to consider all tasks ahead of time, then figure out when to implement them. I see your focus and agree with your end-game. Just be cognizant of the fact that there is a time to "multi-task" and a time to "focus".
