 When people leave for work, some people say, well, I raise the temperature a couple of degrees, and then when I come home, I lower it. But does that help, or does that make it work harder, or should you just leave it where it's at? It does not make it work harder unless you do a significant decrease or increase in temperature. We really encourage customers to get smart thermostats. You can program them, and it's really kind of set it and forget it. They're more comfortable when you're home.