Livre d'Or

But to me, I want to describe it as 'quite simple really' but I guess that people who aren't me get confused.

I think it's because so many social norms and so much etiquette is tied up in this too. So, for instance, I have never quite figured out whether, if I'm inviting my friend A to dinner, whether I need to invite all of her partners, or the partner I know best, or the partner she lives with... or none of her partners. It's not that I dislike any of the partners but I have limited space around my dining table..