The 80/20 rule, called the “Pareto Principle”, is one of the most helpful concepts for life and time management. According to this principle: 20 percent of your priority activities will account for 80 percent of your results.
How to Apply the 80/20 Rule in action? First, take a piece of paper and write down ten goals. Then ask yourself: If you could only accomplish one of the goals on that list today, which one goal would have the greatest positive impact on your life?
For example, if you have a list of ten items to accomplish, one of those items will turn out to be worth more than the other nine items put together. Pick one big goal and work on it all the time, and if you do, it will change your life.