If:
- arriving home or after 5pm
- frost expected tomorrow (weather underground temp below 3 degree Celcius tomorrow)
- GPS position arriving close to home
Then: - Switch front door lights on, off, on, off
- Send ifttt app notification
Details descripted on my blog : http://mytselection.blogspot.com/2018/02/if-this-than-that-cloud-service.html?m=1