Note any differences? You will see that I only make use of one namespace which is System (System.Console) while the rest of the namespaces are not in use. Resharper being intelligent dims the unused namespaces as shown above.
Hovering at the using directives sections, Resharper prompts me with a red bulb and asking me whether to remove the unused directives in file. Clicking it will remove the unused directives.
The same can be accomplished without using any plugins in Visual Studio by right clicking the code editor and choosing Organize Using > Remove and Sort.
For me both way seems to be tedious as i need to go with too many mouse clicks to get something done. Why not create a Visual Studio Keyboard shortcut key. This will save a lot of your time.
Open Tools > Options menu. Select show all settings. Select Environment > Keyboard. Then type Organize to filter the commands in Show commands containing.
Then choose EditorContextMenu.CodeWindow.OrganizeUsing.RemoveAndSort and press Ctrl + U in Press shortcut keys text box. You will see that Edit.MakeLowercase already makes use of that shortcut key. Since I never use that keyboard shortcut, I prefer to replace it. Search again for Edit.MakeLowercase and click the remove button to remove the Edit.MakeLowercase keyboard shortcut.
Search back again for Organize and choose RemoveAndSort and assign Ctrl + U. Next time you want to organize using directives its as simple and as fast as pressing Ctrl + U.
If you would like to see more Visual Studio tips and tricks page. Please visit Visual Studio Tips and Tricks.