title: String.Format vs ToString and using InvariantCulture
body: <p>I am a little confused here.</p>
  
  <p>What should I use</p>
  
  <pre><code>Console.WriteLine((val/1085).ToString("N"));
  
  VS
  
  Console.WriteLine(String.Format("{0:N}", (val/1085)));
  </code></pre>
  
  <p>Also how do I fit the InvariantCulture? ANY BEST PRACTICES :)?</p>