If you are affected by it, the Pareto Rule or more often known as being the "80 / 20" rule really refers this problem. For those not familiar with the "80/20" rule it's user-friendly. 80% of the problem comes from 20% of the cause. Our own view on little liberty with this analogy, we tend to "live" in 20% of property but we pay for cooling the other 80% too. This is particularly true, for those who have a...