There are obvious physical differences between men and women. Self defence courses often take a one-size-fits-all approach to self defence, creating courses that may work for men but will rarely work for women. This leads to horrible advice such as biting, eye gouging and kneeing the groin. This advice is horrible — not because of […]

The 80/20 principle is the observation that for many events, 80% of the results come from only 20% of the effort. This principle is used successfully in many industries, from business to engineering, to get the most result for the least effort. Without the luxury of limitless resources, we must use the resources we do […]