Driving, driving and a bit more driving
Of course with any road trip, there's the small matter of the driving. Road trips don't exist in the UK simply because there's not enough road for it to become a defining feature of any trip.
But in the States roads have been synonymous with the notion of exploration and a genuine linkage between states as different in history and society as any country in Europe is different from its neighbour.
I wonder if that difference still exists - or has the age of local flights and national TV collapsed those differences into a homogenous "all"?
How different will the various stops on our journey be?
And of course, this holiday is not just about the stops it's about the roads in between.
We plan for the stops yet the journey itself is an unknown.
And the unknown breeds uncertainty.
But I have a suspicion that somehow the journeys will end up being the most memorable part of our holiday.
Not long until we find out......