The Ankuoo NEO allows you to power your electronics on or off from wherever you might be.
You can plug anything into the Ankuoo and it will monitor the energy usage and calculate costs for the operation. You can then view these specs in the free app for iOS and Android. The device allows you to set timers to have things turn on or off during the day/week. Make it appear as if there is someone home while you're away by having lights turn on and off during the evening.