mike ring wrote:

Lurch described how you don't normally use more than three cables.

I was brought up to follow the golden rule "one in, one out, one away"
and not to bodge further connections in, for all sorts of things from
tag blocks to frame rooms.

I must be being dense but I don't follow... When I do this I would
normally have daisy-chained junction boxes, with usually four cables per
box, ie power arriving from previous box, switch cable, cable to light
fitting, and power leaving to next box. How do you do it with three
cables?

David