I want to be able to walk into rooms and have lights turn on/ turn off when I leave. I also want to be able to talk to my house. "Hey house, its a tad bit cold in here." House turns down AC. Maybe even apologizes.
There is a tstat that does verbal commands. I believe its a honeywell and runs about twofitty at home depot, iirc.
Also, you could get motion sensor light switches in the nineties, so they are at home depot too.