Writing your papers often requires to get the most out of the number of pages you are allowed to submit.
Sometimes, it helps to reduce the size of standard text elements such as images, paragraphs and also lists.

Lists in latex can be specified as

\begin{itemize} \item Item 1. \item Item 2. \end{itemize}

To modify for example the left margin of the list item block, you can specify your custom itemize element with an reduced margin. Just insert the following block before your \begin{document} statement:

\newenvironment{itemizeReduced}{ \begin{list}{\labelitemi}{\leftmargin=1em} \setlength{\itemsep}{1pt} \setlength{\parskip}{0pt} \setlength{\parsep}{0pt}}{\end{list} }

As a result, you can use itemizeReduced instead of itemize in your document:

\begin{itemizeReduced} \item Item 1. \item Item 2. \end{itemizeReduced}

Result

Latex: Reduce size of itemize / list blocks