I am constructing a longer document, and get an
annoying empty page after the title page. Here is
a short mini-example:

\documentclass[a4paper,12pt,fleqn,oldfontcommands]{memoir}
\setlrmarginsandblock{4cm}{4cm}{*}
\setulmarginsandblock{4cm}{4cm}{*}
\checkandfixthelayout
\addtolength\cftbeforechapterskip{-5pt}
\usepackage{graphicx} % standard LaTeX graphics tool
% when including figure files
\usepackage{epic} % More graphics stuff
\usepackage{eepic} % `` `` ``
\usepackage{alltt}
\usepackage{lscape}
\usepackage{epsfig}
\usepackage{showlabels}
\usepackage[format=hang,labelfont=bf,labelsep=colon]{caption}
\usepackage{url}
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{document}

%%Frontmatter%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{titlingpage}
\vspace{2cm}
\author{me}
\title{title bla}
\maketitle
\end{titlingpage}

\frontmatter
\include{chaps/minipreface}
\tableofcontents*

\mainmatter

%\include{chaps/chap01}%
\flushbottom
\end{document}

The Preface is

\chapter*{Preface}
bla bla
%\clearemptydoublepage

How do I suppress the empty page?

In article <uts627$15r03$1@dont-email.me>, dieterhansbritz@gmail.com
says...
>
> I am constructing a longer document, and get an
> annoying empty page after the title page. Here is
> a short mini-example:
>
> \documentclass[a4paper,12pt,fleqn,oldfontcommands]{memoir}
> \setlrmarginsandblock{4cm}{4cm}{*}
> \setulmarginsandblock{4cm}{4cm}{*}
> \checkandfixthelayout
> \addtolength\cftbeforechapterskip{-5pt}
> \usepackage{graphicx} % standard LaTeX graphics tool
> % when including figure files
> \usepackage{epic} % More graphics stuff
> \usepackage{eepic} % `` `` ``
> \usepackage{alltt}
> \usepackage{lscape}
> \usepackage{epsfig}
> \usepackage{showlabels}
> \usepackage[format=hang,labelfont=bf,labelsep=colon]{caption}
> \usepackage{url}
> %
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> \begin{document}
>
> %%Frontmatter%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> \begin{titlingpage}
> \vspace{2cm}
> \author{me}
> \title{title bla}
> \maketitle
> \end{titlingpage}
>
> \frontmatter
> \include{chaps/minipreface}
> \tableofcontents*
>
> \mainmatter
>
> %\include{chaps/chap01}%
> \flushbottom
> \end{document}
>
> The Preface is
>
> \chapter*{Preface}
> bla bla
> %\clearemptydoublepage
>
> How do I suppress the empty page?

You don't, at least not in books. If you look at any printed book, the
first page (not the carboard envelope and not the "half (bastard)
title", but the actual first page) bears the booktitle, author, year of
publication and similar information. The "verso" page (when you turn the
first, "recto", page around) then contains info on publisher, copyright,
printers, fonts used and the like. You have not set any of these, so
that page remains blank.

Perhaps, for your purposes, a report would be better than a book?

Oh, and before you start filling your book with more pages: A new
chapter starts on a recto page, therefore, the preceeding verso page is
usually empty too.