Ease the pressure of hours in the car wondering if you did everything before setting off on the next leg of the journey, by making a checklist.
Things to check will include:
* Windows closed and locked
* Roof hatch is down
* Hand brake is NOT on
* Step folded in
* Battery switched over
* Cupboards packed and closed
* All items secure
* Fridge packed correctly and locked
It is also a good idea if you plan on a longer stop for a cuppa or lunch etc turn off the 12 volt system on the fridge, eliminating the possibility of a flat battery in the car when you take off again. Also staying overnight and not unhitching the van, disconnect 12 volt system in case 12 volt lights are left on.