we have worked around this so far, but has anyone done a road trip with just you, toddler/baby/kid, and a dog? How do you make it work, just in terms of pit stops for food and bathroom?

I recently was thinking about driving down to visit family and leave our dog with my sister while we were traveling, but it's a five hour drive and I knew I'd have to use the bathroom. Plus c hates if we stop and get out of the car then right back in. But I wouldn't really like leaving the dog in the car for the five minutes t took to use the bathroom, much less long enough to eat lunch. And that's in the cold- forget in the summer!

So... Is this just impossible? Or am I missing something?