Here is a smart light switch that turns on lights as you arrive home. The Switchmate Light Switch magnetically attaches to standard toggle or rocker light switches. You can also control it from your phone. Just download the switchmate app, tap the connect button, and you are ready to go.
Switchmate can be put on a schedule, making it appear like someone is always home. No WiFi is required. Costs under $40 at this time.[where to get it]