A Light in the Window

This is the view from my back door.  As you can tell, it's pretty much impossible to see the garage door. To be able to tell if I've unintentionally  left the door open (which has happened) I set up a switch at the top of the door opening that turns on a light when the door arrives at the end of it's travel.  Now if that door is open there is a visual reminder that's easy to see.