Create a custom list for LaTeX. For my final paper for a degree as computer specialist I needed to add a glossary and a table of acronyms. I did not want to use a package. For this reason I looked for a simple solution: `\newenviroment` offers the possibility to define a custom list. Here is an Example on how to define a custom list.

customList.tex

% Custom list for glossary
\newenvironment{glossarydescription}{
  \begin{list}{}{
    \setlength{\labelsep}{0mm} % space before text.
    \setlength{\labelwidth}{44mm} % width of the label.
    \setlength{\leftmargin}{44mm}  % adjust margin. same size as labelwidth.
    \renewcommand{\makelabel}[1]{\textbf{##1\space}\dotfill\space} % \dotfill creates a line of dots. you can also use \hfill
  }
}
{\end{list}}