The best thermostat out there. With the 2nd generation of the Nest Learning Thermostat, home heating has gone high-tech. How does Nest work? It’s a self learning thermostat with zero programming. Basically, when you’re cold, you turn the temperature up a bit. Over time Nest learns your habits and efficiently turns your furnace on when needed and down when you’re away. There’s even an iPhone app so you can control it over wifi. Not just cool for your home, but actually save on your heating and cooling bill. At $250, it may be a bit pricey as a casual gift. You can always treat yourself to a new high-tech toy though. Let us know what you think in the comments.