Typing 100wpm
Best thing I learned at high school and still benefit from is typing at 100wpm.
In second year of high school, my junior brother and I took typing and competed against each other as we did in diving competition. As I recall, some girl was the best with my brother second and me third. By being a 10-finger flyer without having to think about where one's fingers are, one can devote more of one's cognitive intellect to shaping ideas than can the hunt-and-peck chicken typists. (In one of my businesses I had a great redhead who could type 250wpm--More than once she would crank out a 30-page hand-written rough draft in two-hours with the spellchecker finding only five errors. She typed without bending her fingers.)
Anyone who says they can type but cannot type at least 40wpm is a chicken typist. Hunt-and-peckers cannot exceed 40wpm as a rule.