Minimal Working Example in LaTeX
A Minimal Working Example (MWE) for a LaTeX document:
\documentclass{article}
\begin{document}
Hello World.
\end{document}
I use this template as the basis for my questions on tex.stackexchange.com.
Small rant: Ironically, the most prevalent sites about LaTeX MWEs either don't provide MWEs, or they are so bloated that they only get around to it in Chapter 4...To be fair, the sites I linked to do contain lot's of helpful tricks on how to keep MWEs minimal when the circumstances are more complex (questions about the bibliography, about figures, ...).