devenv.exe /resetsettings
2013
Visual Studio Installer Projects as Extension
At least! But only a preview for now.
Visual Studio Installer Projects Extension – The Visual Studio Blog – Site Home – MSDN Blogs.
XAML Regions extension
For someone working with Xaml, this VS extension is unvaluable: XAML Regions extension.
XAML Code Snippets for Visual Studio 2013
Can be a great think: Creating XAML Code Snippets for Visual Studio 2013.