If you like The 80/20 principle

"The 80/20 Principle shows how you can achieve much more with much less effort, time, and resources, simply by concentrating on the all-important 20 percent.". "The pattern of predictable imbalance underlying the 80/20 Principle was first discovered a hundred years ago by Italian economist Vilfredo Pareto while studying income and wealth patterns. But the pattern of "predictable imbalance," as he termed it, crops up…