Human willpower is limited, and every small decision in daily life consumes it. Constantly fussing over minor matters, such as saving a few dollars or comparing products, will drain your energy and leave you with insufficient willpower to make more important decisions or invest your time and abilities. Therefore, by reducing unnecessary choices and indecision, and establishing fixed habits, you can conserve willpower and free up energy for more important things. This is also why changing your mindset and behavior often makes people richer than simply pursuing money first.