It would be interesting to see it used on much larger scales with businesses - improving lighting, more efficient HVAC systems, etc.

For example, our HVAC system runs on a timer, but why not override that based on motion sensors? The conference room calendar is booked at different times, so why not automatically adjust the temperature, open the blinds, and adjust the lighting just beforehand.

And why are we paying janitors to vacuum when robot vacuums work well and are improving all the time? Just unleash a dozen vacuums at night, have doors automatically open as needed, and they can mop too.