When I got into residential, I made tags for the wires and pushed them all together back in the box. The labels took up a lot of space (making it more likely something would get nicked with a Rotozip), and they were coated with paint and unreadable when I went back to trim out. And then you still had to take the time to find the right wires for the right devices.
I changed to simply grouping all the wires for a device together, and wrapping the EGC around them once to hold them together
- 3-Ways: Common is always stripped about an inch. Travelers are always black-and-red.
- 4-Ways: Each set of travelers is twisted, but it's usually un-necessary.
- GFCIS: Any load side conductors are wire-nutted together.
Multi-gang boxes, each set of wire is positioned where it's respective device will go.
No tape, no labels, works well.
-John
