I loved all the writing, journalism and science classes I took in high school, but the most practical and long-term beneficial was Personal Typing. It was a half-year class for non-business types. We used manual typewriters and weren't allowed to go near the IBM Selectrics.
That was in 1975. In 1980, when I got my hands on a computer, it made things much easier. For many years now, if I need to write anything that won't fit on a Postit note, I sit at the PC keyboard. I even compose on the computer, without ever touching paper. I find it much easier and faster. Now all I need is a neural interface