I know codes vary place to place a bit but I have a question about a barn/shop I am wiring. I'm running a circuit for the overhead lights, 15 A with a 3 way switch. What I want to do is use that same circuit to supply 2 duplexes mounted in the ceiling for door openers. What the problem is is the way the supply comes into the circuit the duplexes will be at the end of the line so the switch would turn them of and on. To keep them hot all the time I was thinking about running a single 14 ga wire to pick up the hot at the beginning of the circuit and running it to the outlet end. So what I would have is a 14/2 with ground romex running light to light but the 14 ga single wire running parallel to that run. It will all be covered so nothing is in conduit. Is that legit or do I need to tear out the 14/2 and install 14/3 just to have the third wire to carry power to the switch?