I second your feelings. There is a module for a switch (I got one on my air conditioner) but it's uncommon. When I need one (example: TV) either I build a cable

I second your feelings. There is a module for a switch (I got one on my air conditioner) but it's uncommon. When I need one (example: TV) either I build a cable with a switch or I plug it in a power strip (example: RPi and USB hub). I buy only ones with individual switches on every socket.