While preparing the above chart, I must have re-designed it a dozen times, or more. It's not perfect, but I have to say "no more" at some point. Here's Parato's 80/20 rule to tame any perfectionist's mind: 80% of the benefit is generated by 20% of the effort. What this also means is that the last 20% to perfection requires an extra 80% of the effort. In the multiple tasks that we do each day, we need to know when to stop.