This is my personal set of $\mathrm{\TeX}$ and $\mathrm{\LaTeX}$ formatting styles. Often it is enough to just copy/paste in the preamble. If not, this can be found in the local texmf.
\NeedsTeXFormat{LaTeX2e}[1995/12/01] \ProvidesPackage{laussy}[1998/08/04 v0.9b Typesetting units] \RequirePackage{xspace} \newcommand{\ud}[1]{{#1^{\dagger}}} %\newcommand{\au}{a_{\uparrow}} %\newcommand{\ad}{a_{\downarrow}} \newcommand{\bra}[1]{\left\langle #1\right|} \newcommand{\ket}[1]{\left| #1\right\rangle} \newcommand{\braket}[2]{\langle #1|#2\rangle} \newcommand\sign[1]{\mathrm{sign}(#1)} %\newcommand\Tr{\mathrm{Tr}} % People's names: \newcommand{\Imamoglu}{\u Imamo\=glu} \newcommand{\Vuckovic}{Vu\u{c}kovi\'c} % Formatting style: \addtolength{\itemsep}{-0.5\baselineskip}