I have a habit of leaving my office lights on when I leave my office.
My wife has a habit of asking me “Did you mean to leave your office light on?” (the answer to which is never ‘yes’ but she insists on asking).
I was thinking of putting an iBeacon or some other Bluetooth “thing” in my office which would let me set a “scene” when I enter the office and when I leave the office, that way we could avoid repeating this conversation.
However, it’s very difficult to figure out if this is actually possible or not.
iBeacons never really seem to have caught on. I know I could do this with NFC tags, but I’d rather not have to do anything other than leave / enter the room with my iPhone if that is possible.