I am a student, and have begun using LaTeX and other typesetting programs based on it recently. It is no doubt one of the best, if not the best, software available for producing beautiful and elegant documents. Combined with TikZ and PGFPlots, LaTeX seems to almost have it all to produce professional scientific papers and texts in general.

I am always interested in learning more about these programs, and SE has been a crucial portal to learn new methods and interesting solutions to using LaTeX and other programs.