Some won't even drive on Sunday.
Some won't prepare a big meal either, when I lived in Riverside the family next door to me would cook everything on Sat. and then just heat it up. They were also into offroading and such and would go camping late Fri. and be back for Sun. service.
a friend of mine in high school was the same way. His mom would prepare a meal for sunday that they could eat cold, and they were only allowed to do quiet and or family activities (ie board games, reading books, etc.) no video games, no tv. They would only go somewhere if they HAD to other than church, and when it was nice (vacaville, CA so most of the time) they would walk to church rather than drive, as they lived in the neighborhood.