Gina,
First, congratulations and enjoy the new adventures.
Corvettekent and others have good ideas, but I will still add one recommendation.
Have a watcher for the driver and radios of some kind. Cell phones will do if there is coverage. Parking lot practice is the only way to get comfortable at doing this. It can be done.
Next and important. Get both of you driving and backing the rig. Two drivers will greatly extend your range and if one of you is down, it is less of an emergency.
Matt - DW drives in daylight