The only thing I power directly from the power supply is my 10m beacon. When I built the beacon, I used a pushbutton switch as a power switch. It was a switch I had salvaged from something I had built before, and for some reason it was going wonky shutting off on its own, and not making good contact. Eventually I had a realization that on a device which is intended to operate 24/7 there was no need for a power switch. So instead of replacing the switch I just wired across it so it's on full time, and if for any reason I need to shut off the beacon I just turn the power supply off. At home, I usually do have the habit of shutting down each radio before turning the power supplies off. I don't know that it's really necessary but I do it anyway.