Am I the only one who enjoys taking notes? But more in the sense of recording knowledge so that I have it in perpetuity.

For instance, I have almost completely forgotten how to solve ODEs, even though I had a good command of it when I learned it (by solving practice problems). In that sense, I wish that my prior self had taken good notes, so that I wouldn't have to dig up source material if I wanted to relearn it again.

Everyone likes nicely typeset LaTeX -- why not apply that craftsmanship to preserving academic notes?