Door bell camera
Some of these are a luxury and others should be a priority. The reason why is some homes tend to have packages missing or in delivered, having a camera could help prevent issues like this. The driveway camera and door cam can help notify when someone is there.
Having a smart bulb or plugs allow you to toggle devices remotely or from across the room no more stubbing your feet during the night trying to find the switch
A speaker makes this a whole lot easier by allowing voice commands instead of using your phone.