Merry Noel and all that

I'm two minds more than usual at Christmas. French and British. Usually I automatically choose one mind for each activity. But Christmas is different, since it's almost always shared French and British participants. So it takes longer to recover. While in self-imposed therapy for this recent dose, I've been reflecting on the things that are the opposite way round on either side of La Manche/The Channel. Here's a few examples:

Obviously, which side of the road we drive on;
Which way round the spine of a book reads;
Which way round the brakes on a bicycle are;
Whether your light switch goes up or down for on;
Does your adjective go before or after the noun?
etc.

Let me know the things you've noticed ...