I don't think that ROI on home automation is positive, at least not for me. While the automations mentioned are nice for the author, it seems to be too much effort for too little gains.

For me, home automation suppose to free up your time for other activities.

Washing the dishes or clothes are great automation. I would look to other automation like changing the bed sheets, folding clothes, cooking the evening meals, grocery shopping etc. Let's talk again when these items become main stream.