Latex tips.
List compiled by Kevin Leyton-Brown and Kevin Murphy

%% keep figures from going onto a page by themselves 
\renewcommand{\topfraction}{0.85}
\renewcommand{\textfraction}{0.1}
\renewcommand{\floatpagefraction}{0.75}

%% make lists small
\newcommand{\denselist}{\itemsep 0pt\topsep-6pt\partopsep-6pt}

%% make section headings take up less space ("medium" can be replaced by "small" or "big")
\usepackage[medium,compact]{titlesec}

%% a trick that makes the title take up less space for many style files (but not article)
\addtolength{\titlebox}{-1.8cm}

%% densify spacing in bibliographies
\newcommand{\bibfix}{%    PUT \bibfix in file.bbl after first line
    \setlength{\parsep}{\parskip}%
    \setlength{\itemsep}{0cm}%
    \setlength{\topsep}{\parskip}%
    \setlength{\parskip}{0cm}%
    \setlength{\partopsep}{0cm}%
    \setlength{\listparindent}{\parindent}%
    \setlength{\labelwidth}{10pt}%
    \setlength{\labelsep}{0pt}%
    \setlength{\leftskip}{0pt}%
    \setlength{\leftmargin}{0pt}%
}

%% change margins
\setlength{\textwidth}{7in}
\setlength{\textheight}{8.75in}
\setlength{\oddsidemargin}{-0.25in}
\setlength{\evensidemargin}{-0.25in}
\setlength{\headsep}{10pt}

Use changebar.sty  to track changes.

Saving space: see
   http://www-h.eng.cam.ac.uk/help/tpl/textprocessing/squeeze.html

Page layout info:
   http://amath.colorado.edu/documentation/LaTeX/reference/layout.html

For pseudocode, use 
algorithm2e.sty (http://www.lirmm.fr/~fiorio/AlgorithmSty/)