When I was in my teens, my dad bought me a Norelco triple-head electric shaver for Christmas. It was a state-of- the-art tool ready to tackle the dozen or so hairs that were beginning to sprout on my chin. I used it for many years until I became frustrated by its inefficacy to closely shave what was emerging as a full beard. So, I switched to a new double-blade razor. Soon that was replaced by a triple-blade razor but, it seemed that no razor was up to the task.