Vivint was out today and they installed the nest PRO thermostat in our house. Supposedly, this will help us save 10 - 15% on our heating and cooling bill. That savings can go right to our grocery budget.  I'm pretty excited because I just love new technology and I love saving money.  The nest integrates with the Vivint Smart Home system we have, as well as with our Amazon Echo. I can simply tell Alexa to set living room temp to whatever I want and she'll do it.   I can also control the nest from the nest app, as well as the Vivint app.  I haven't had a huge amount of time to work with it just yet but as I do, I'll share my experience. I had talked about this a…