Always ON nowadays, either on inverter or shore power. I put a LED night light in the outlet on my cabinet, so I can easily look in the window while walking by to make sure I still have AC power running if the van sits for a day or two.
I prefer my fridge always cold and always containing bottled water, Dr. Pepper, and beer. 3 of the four essential necessities for living. The fourth is bacon, which I can't store for very long unfortunately.