Put comments in latex.

comments.tex

\newcount\Comments  % 0 suppresses notes to selves in text
\Comments=1   % TODO: set to 0 for final version

% for comments
\usepackage{color}
\definecolor{darkgreen}{rgb}{0,0.5,0}
\definecolor{purple}{rgb}{1,0,1}
% \kibitz{color}{comment} inserts a colored comment in the text
\newcommand{\kibitz}[2]{\ifnum\Comments=1\textcolor{#1}{#2}\fi}
% add yourself here:
\newcommand{\nehil}[1]{\kibitz{red}      {[NJ: #1]}}
\newcommand{\jeremy}[1]  {\kibitz{purple}   {[JK: #1]}}