Teach math for a living, use LaTeX as a tool for both presentation and spreading information. I teach students the basics of LaTeX, but try to push them into exploring on their own.
My challenge is to get students to understand the power of pgf/tikz/pgfplots and when to use which. One day I aim to make them stop using \includegraphics
.pdf's.
Elliptic curves and elliptic functions fascinates me.