White bread, cheese slices and presumably bland chili. Quite possibly the most unappetizing thing I have seen Neatorama post. People are willing to pay for that?
My old thermostat died when the furnace was on. I noticed when it got really hot in the house; good job I was at home. If I'm away, I use a home-brew temperature monitor (temps put on Dropbox), which works great. I assume the WiFi-controllable thermostats can tell you the temperature remotely.