As a young child, I distinctly remember my father following me around the house turning lights off. By the age of seven, I could rattle off utility cost per kWh and the estimated lifecycle of the various incandescent bulbs illuminating our home. Whether it was getting produce from a modest home garden, heating our living room with a wood-burning stove, or having the entire house dark except the room currently occupied; there seemed to be an intersection between what is sustainable, what is good for the environment, and what yields measurable cost savings.