Smartphones have become indispensable tools for managing everything from finances to social lives. They are electronic personal assistants, so it’s only natural that they can now be used to control homes. Sure, they can be used to schedule maintenance and find contractors, but they also have the capability to act like remote controls to various household appliances. Not sure if you turned your lights off? There’s an app for that. Forget to lock your door? Your phone has your back.