If there's a bit of room in the fridge put a pan or bowl of ice in it. This I've used in power outages - although a whole bin in my large home fridge. Obviously that's if you can get ice or plan ahead.
Hello - I'd like to start out by taking a van for road trips now and then and see where that leads. What are recommendations for ( certain types of) vans, and where to look for a converted or even part conversion, to buy? Thank you.