title: How to use gzip
body: <p>Can anyone who is using GZip for HTML, JS, PHP and CSS explain how to implement this on a server?</p>
  
  <p>What I want to know is:</p>
  
  <ol>
  <li>What do I have to write in .htaccess?</li>
  <li>What and from which source do I have to download?</li>
  <li>Most important: does it make a difference and does it pay off?</li>
  </ol>