Did you know you can use SmartTags to automatically qualify your classnames?  Using C# as an example, let’s say you were to type in

private Process proc;

But you don’t have the appropriate using statement included in your code.  You can put the cursor over Process to invoke the SmartTag icon – the little red rectangle at the end of the word.  You can use the mouse to invoke the SmartTag by hovering over it or use the keyboard by pressing Ctrl+. or Shift+Alt+F10.  Both keyboard shortcuts are bound to View.ShowSmartTag. 

You’ll now have the option to select whether to insert

using System.Diagnostics;
or

System.Diagnostics.Process

Thanks to Chetan for the suggestion.

Happy Visual Studio’ing!