title: What's the value in removing and/or sorting Usings?
body: <p>I've always run <em>Remove and Sort Usings</em> as a matter of course, because it seems the right thing to do.
  But just now I got to wondering: Why do we do this?</p>
  
  <p>Certainly, there's always a benefit to clean &amp; compact code.
  And there must be some benefit if MS took the time to have it as a menu item in VS.</p>
  
  <p>Can anyone answer: why do this?
  What are the compile-time or run-time (or other) benefits from removing and/or sorting usings?</p>