Mark Wooding
Short commands starting '@'.
A package for handling the cmtt font better.
Do things after a group.
Improve on LaTeX's footnote handling.
A model for font manipulation.
Miscellaneous list-related commands.
Some maths extensions.
A reimplementation of tabular and array environments.
Miscellaneous tools by Mark Wooding.
A set of verbatim text manipulations.
Typeset syntax descriptions.