You can find the Productivity Power Tools from within Visual Studio 2013: open Tools/Extensions and Updates/OnLine/Visual Studio Gallery and you can search for it, or scroll around to find it.
“I speak in a poem of the ancient food of heroes: humiliation, unhappiness, discord. Those things are given to us to transform, so that we may make from the miserable circumstances of our lives things that are eternal, or aspire to be so.” Jorge Luis Borges