In what ways can TeX be used beyond document production?
What else can we create in LaTeX besides aesthetically beautiful typeset documents? I know we can create theses, monographs, books, we can draw using PSTricks or TikZ and create slides with Beamer, but what else can we do? I do not know, but how to create mailers? How to create animations? These are just a few suggestions. What else can we create in LaTeX? How to go beyond LaTeX?