14. Extra clothes
Kids always love playing around, so they are more likely to get wet and dirty during the trip. Keep a spare in the car at all times.
15. First-aid kit
Just like at home, your car should have a first-aid kit. If you have robust and active kids, you might have to mend a cut or a scrape a few times over the trip.
Make your trips with your kids more comfortable by bringing these car essentials with you. It would be better if you keep a checklist that you can refer to before you start your trip.