Belkin WeMo
In this modern era of smartphones and connected appliances, home automation shouldn't require a complex, expensive, and closed system — and with Belkin WeMo ($50-$100), it doesn't have to. Combining an app with Wi-Fi-enabled Home Control Switch models and motion sensors, WeMo can give you the power to turn off lights, appliances, and more, or have them operate automatically based on who is — or isn't — in the room.