So after a discussion we decided on a light grey wood laminate flooring. Pretty neutral and we can have some rugs on it to add colour. Also, if we changed the wall colour it would probably go with anything new. On Tuesday went to Costco and they had all the colours on display. Mrs said what about another colour but then said stick with what we decided.
So I ordered the colour we decided. She then says Oh so we aren't having the other one then!
The lesson learnt is from now on I am getting any colour decision in writing and signed before doing anything. That in itself will create some tension but it has to be worth it.
Neither of the rooms are square and there isn't an obvious direction to lay the stuff. In one room laying it across the width will be easier as it is two planks across and just need to cut one in half randomly and doing the door entrance will be easier. Doing it along the length of the room is easier as less cuts but the small entrance to the room will have them just lined up. Asked my wife what she thought and

was the response.
The other room is square with a bit of an alcove so no real issue for that one.
Thus the saga of the sleepless nights.