+\documentclass[english,10pt]{letter}
+\usepackage{invoice}
+\usepackage[inline]{fixme}
+\newenvironment{narrow}[2]{%
+ \begin{list}{}{%
+ \setlength{\topsep}{0pt}%
+ \setlength{\leftmargin}{#1}%
+ \setlength{\rightmargin}{#2}%
+ \setlength{\listparindent}{\parindent}%
+ \setlength{\itemindent}{\parindent}%
+ \setlength{\parsep}{\parskip}}%
+ \item[]}{\end{list}}
+\renewcommand{\textfraction}{0.15}
+\renewcommand{\topfraction}{0.85}
+\renewcommand{\bottomfraction}{0.65}
+\renewcommand{\floatpagefraction}{0.60}
+\newenvironment{enumerate*}%
+{\begin{enumerate}%
+ \setlength{\topsep}{5pt}%
+ \setlength{\itemsep}{0pt}%
+ \setlength{\parskip}{5pt}}%
+ {\end{enumerate}}
+\newsavebox{\sbitemize}
+\newenvironment{itemize*}%
+{\begin{lrbox}{\sbitemize}\begin{minipage}{9cm}\begin{itemize}%
+ \setlength{\topsep}{5pt}%
+ \setlength{\itemsep}{0pt}%
+ \setlength{\parskip}{5pt}}%
+ {\end{itemize}\end{minipage}\end{lrbox}\setlength{\fboxrule}{0.0pt}\fbox{\usebox{\sbitemize}}}
+\addtolength{\topmargin}{-1.7in}
+\addtolength{\textheight}{3in}
+
+\name{Don Armstrong}
+\address{
+ Don Armstrong\\
+ 5045 Kensington Way\\
+ Riverside, CA 92507-6044\\
+ {\bf don@donarmstrong.com}\\
+ 714-813-8531}
+\newcommand{\CLIENT}{Client Name}
+\begin{document}
+
+\begin{letter}{
+ \Client\\
+ \fixme{Address}\\
+ \\
+ }
+
+ \opening{\ } Please find the invoice for work performed for
+ \CLIENT\ by Don Armstrong on \fixme{Project} from \fixme{FromDate}
+ to \fixme{ToDate} below. To pay via check, please make checks
+ payable to ``Don Armstrong'' and mail to the address above. If you
+ wish to pay via other means, please e-mail {\bf
+ don@donarmstrong.com} for further instructions.
+
+ Note: The times below indicate the time spent on each of the
+ subdivisions indicated, not necessarily that the task was completed
+ in this invoice period.
+
+\begin{narrow}{-4in}{-2in}
+ \begin{center}
+ \begin{minipage}{\textwidth}
+ \begin{invoice}{US}{0}
+ \ProjectTitle{}
+ \Fee{\begin{itemize*}
+ \item
+ \end{itemize*}}{50.00}{1}
+ \end{invoice}
+ \end{minipage}
+ \end{center}
+\end{narrow}
+
+\end{letter}
+
+\end{document}
\ No newline at end of file