Long Road Trip with Children

So we are going on a vacation. Driving from NW Arkansas down to the Gulf of Mexico to see my mother in Biloxi MS. My husband and I will be driving down there, in a small car, with three children in the back seat. I've been making up games and creating bags for each child with activities they can do while we drive for two days with a few stops in between. I'm not sure if this is a smart idea or not but I think we'll have fun once we're out of the car. Wish us luck! LOL