All versions of visual studio can be started with a set of arguments.
Using devenv.exe /SafeMode allows you to run any version of visual studio (devenv.exe) in SafeMode that will disable 3rd party plugins.
Using devenv.exe /ResetSettings will restore Visual Studio default settings
Run these commands from Command prompt in admin mode. For additional options refer MSDN for help.
The Visual Studio Gallery is the best place to find tools, controls, extensions and templates to help make your life as a developer easier and more productive.
These extensions are almost always language/platform agnostic and just make Visual Studio better and/or easier to work in. A lot of these owned by Microsoft, Microsoft DevLabs, or Microsoft employees or individuals. These extensions generally fall into language specific or technology specific extensions. That really means they may only b useful to you at certain times.
These are only few that I found useful and helpful. But there are lot out there Visual Studio Market Place.
