More of my friends have video doorbells that show those inside the house who is at the door. The video shows in an app on a smartphone, even when the home owners are in Hawaii or Arizona and the house is in Wisconsin. More and more aspects of the home can be checked online by the home owner wherever he is.
The video doorbells can send sound to those at the door. Some people at the door who know the owner is away are quite shocked to hear his voice asking how they are and what they want. A man who comes to the house who shovels the driveway is surprised to hear the owner asking how the shoveler is and thanking him for his service. The phone dings distinctively when a video is being transmitted. The videos are stored and can be viewed later. Maybe people will take to reviewing old doorway tapes when they are bored with what is on tv.
My friend has monitors that watch over the levels of liquids in his expensive cars, such as brake fluid and transmission fluids. So far as I know, he does not yet have a robot to add liquid when it is needed. He has to ask a neighbor to do that.
