Most people label panels after they do finish...right? lol...I've seen a bunch of panels that just aren't labelled, and I go to turn off a circuit...and I have no clue what breaker it goes to. I think I'm gonna make a panel schedule for my panel over Christmas break...do I need a circuit tracer? Or can I just my voltage dector/receptacle tester once I turn off a circuit to see what goes off, then label it accodringly?