This is the diagram I used, there is another way as well
The bedroom was easy as this is a simple loop, however the lounge was a bit harder as I have the wiring running in a 2 spur system to save cable runs.
As you can guess I have been doing some wiring today. The bathroom is now fully wired. The bedroom and the lounge area have their primary lighting done now and will get their secondary lighting done when the ceiling goes up. There will also be complimentary lighting under the gunwales and around plinths and stairs.