Whether four hours or four days, road trips can be stressful, let alone road trips with kids. Throw a few squirmy toddlers, perhaps a slightly older little person, and a tiny person and those road trips get exponentially more stressful. Whenever those moments in the car seem to be on the verge of bursting open in frustrated wails, I close my eyes and imagine what it would be like to be strapped to the seat in a five-point harness with close to no room to shift my heft left or right, sweet toes dangling at least two feet from the ground, most likely having lost all feeling about forty five minutes into…