I finished off an eave. There was a light in the middle of the eave. I put a light on the back wall and front wall, with a switch at the end. I took the light out that was in middle of eave and pigtailed black-to-black and white-to-white in the junction box. I ran cable to back wall for light, then to front wall for light, then to switch. I am confused as to how exactly to wire for a switch loop. So I have two lights before the switch. Do I make the switch at the first light in the series. Also, for the first light in series that gets the switch, if there is a black and white wire coming out of the light fixture, how do the wires connect to the fixture? Black to Black, white to black, does it matter? I made a diagram on powerpoint, I can not upload. I can email directly.