A suitcase with decently large wheels is a good thing to keep the stuff in, inside your vehicle. It is reasonably portable. Doesn't scream 'prepper' either. And it keeps your trunk nice and organized. I also have a folding luggage carrier which is great for a small cooler or plano totes. But it's kinda janky. A collapsible wagon would be good. But hopefully my car can go with me because it has all I need except food and some extra blankets.