How to remove the Navigation Bar

1. Log in your Blogger account.
2. From the Dashboard, go to Layout
3. Choose Edit HTML
4. Scroll a bit down, and look for :

   <b:skin><![CDATA[/*

5. A few lines below that, copy/paste :

   #navbar-iframe {
   	height:0px;
   	visibility:hidden;
   	display:none
   }

6. Save your template.
7. Done! The NavBar is gone.