I have a switch in my wall which turns a outlet on and off, however I'm nearing maximum capacity on that circuit. I want to be able to plug more stuff into it so that I can turn it off with this same swich.
My idea is to somehow build a little box which plugs into 2 separate circuits, the one controlled by the switch, and another circuit which is on all the time. The box would also have a plug that I could plug a power strip into.
When the power to the circuit controlled by the switch is turned on, the box activates a relay which turns power on to the output which goes to the power strip, coming from that secondary circuit.
(Oops, spelled circuit incorrectly)
Does this make sense? In this way I can control more devices with my switch.
How could I build this? I know it'd use a relay, but what else? Safety concerns?