As I sit here at my desk, I realize I’ve forgotten to turn on my speakers, and forgot to run this program. I wish I could have an office and house like Marty McFly had in Back to the Future II. When you walk in the door, everything happens automatically. This turns on, that starts running.
I tend to be a forgetful person, and having this kind of house would really be helpful to me. :)

Someone – please design it. I’ll buy it.

UPDATE Jan 2022: This happened. Amazon Alexa & Apple HomeKit.  This stuff can happen.