Meet the TP-LINK HS100: a WiFi enabled plug that lets you turn your electronics on/off from anywhere. The companion app is available for iOS and Android devices. In Away Mode, your devices are turned on and off at different times to give the appearance that someone is home when you are away.
The HS100 Smart Plug lets you check on your devices from a remote location. You can add voice control to electronics by pairing it with Amazon Echo. Costs under $30.