Add-ons for Visual Studio

As a development of the theme raised by the XaocCPS habrauzer , I want to ask what useful add-ins for Visual Studio do you use?

I would like to recommend the following:

1. ReSharper - helps to analyze and generate code, refactoring, and much more ... In my opinion, this addon deserves a separate article on Habré.
   
   GhostDoc - helps you automatically generate XML descriptions for functions, variables, etc.
   ')
   Smart Paster - paste and format text from the clipboard as Comment, String, StringBuilder or Region.
   PS
   I hope that the comments on this post will help us all find new, useful and useful add-ons.