A new feature of Visual Studio 2013 is the ability to sign in with a Microsoft Account and have your settings be persisted across all of your instances of Visual Studio, amo
Derek's answer above didn't work for me. I am using VS 2013 Ultimate and after signing out of Visual Studio, when i tried to sign in as another user, it gave error.
Then when connecting to the Team Project i saw the option to switch user, which is what i wanted all along.