Your habits, or systems for living, are how you put your models of reality into practice. If models of reality are the hardware of the human “machine,” systems for living are the software. They’re your activities and daily habits—for example, how you eat (based on your beliefs about nutrition), how you work (based on your beliefs about what kind of career and work behaviors are acceptable), and how you deal with money (based on your beliefs about the ease of acquiring money or the guilt or honor of having lots of it).