Example for a list using mdwlist
:
\begin{itemize*}
\item First
\item Second
\end{itemize*}
The bullet symbol for the first level can be redefined with:
\renewcommand{\labelitemi}{$\bullet$}
It apparently uses a math environments symbol by default.
I would like to reduce the size of it, but font size modifiers like \tiny
seem to be invalid.