title: Combining JavaScript files as recommended by YSlow - optimal size?
body: <p>We have about 30 external JavaScripts on our page. Each is already minified.</p>
  
  <p>To reduce HTTP requests and page load time, we are considering combining them to a single file.
  This was recommended by the YSlow tool.</p>
  
  <p>Is this wise, or is it better to combine them into, say, two files with 15 scripts each?</p>
  
  <p>Is there an optimal size for the combined JavaScript files?</p>