Photo by @realtravelexperiences  on Twenty20 Remember how things were in the old days when brushing your teeth was the exhausting ritual of getting a toothbrush and rubbing it back and forth in your mouth for a few minutes? Fortunately, the wonders of modern technology have solved this problem for us, with the invention of the electric toothbrush. An electric toothbrush looks like a slightly larger version of a regular toothbrush, but when you put in a battery and press a button,…