Okay, short history lesson -- don't let your eyes glaze over. Have you heard of the 80/20 rule? It's also called the law of the vital few and was originally called The Pareto Principle. It started way back in the early 1900s when Vilfredo Pareto discovered that 80 percent of the land in Italy was owned by 20 percent of the people. Am I making you feel like you are back in school? Stay with me!
Soon people saw how this rule played out in business. More often than not, 20 percent of your customers lead to most, or 80 percent, of your sales. Today the 80/20 rule has all sorts of cool interpretations.