A collection of fragments of LaTeX code, suitable for inclusion in packages, or (possibly) in users' documents. Included are:

– checklab, for modifying the label checking code at \end{document};
– overrightarrow, defining a doubled over-arrow macro;
– removefr, for removing ‘reset’ relations between counters; and
– subscript, defining a \textsubscript command.

The author is unknown.