Set a iPhone reminder with "remind me at a location" turned on. Set your home location or whatever you want. Then when you arrive @ the location your lights, door un/lock, etc.... will activate. (WeMo, SmartThings Apps). When I pull into my driveway my porch lights go on and my front door unlocks.
Then
Turn on
This Action will turn a WeMo Light Switch on. If the WeMo Switch is already on, it will remain on.
Explore more great ways to automate iOS Reminders and WeMo Light Switch