The Pareto Principle or the 80/20 rule for productivity says that 80% of results come from 20% of your efforts. In other words, maximize your efforts where they are most effective. For those who struggle with productivity, the 80/20 rule suggests prioritizing the tasks that produce the most significant results. For example, instead of fixing every single website page to generate more traffic (80% effort for 20% results), optimize just a few of your pages that are most likely to convert sales (20% effort for 80% results).