My goal is to simply add an additional outlet to a bathroom. It's starting to look like the simplest way is going to be a new run from the breaker box. Anyway while checking my options, I found a couple things I can't wrap my head around. This ground level bathroom has one GFCI outlet on the wall above the vanity. The only fixtures are an exhaust fan and light fixture above the vanity with three light bulbs. As expected these each have a switch in a double gang box in the wall - one stud to the right of the gfci outlet. My first thought was to simply extend the gfci outlet. When I examined the outlet, the box had two yellow-jacketed cables coming in, connected to either side of the outlet and the grounds wire-nutted with a pigtail going to the ground lug on the outlet. This is certainly nothing out of the ordinary, execept that I have no clue what the next device in the daisy chain might be? There is an outlet on the opposite side of the wall in the bedroom just a few feet below the gfci outlet, but this one has no yellow-jacketed cables coming in. However it has three white-jacketed cables coming in and all of these are wire-nutted together (black to black, white to white) with pigtails going to the outlet itself. Question 2: Is it kosher to have wire nuts in an outlet box (other than the ground)? [I did find another example of this in a basement GFCI outlet - 3 yellow jacketed cables coming in]. Finally, I was expecting to see four cables coming in to the switch box, but in fact there were six, all white-jacketed. What might the extra two cables be for?