Holiday traffic experience can be very frustrating especially if you have kids with you. You need to pack a lot of baby clothes and other baby stuff too. It is hard to travel light when you have kids with you.
If it is a long drive then you need to be ready with toys to ease the boredom of your kids. Or simply be prepared with some car travel games. Aside from toys and clothes; you must have medicines too. In case someone get sick during the vacation, you are ready for it. Bring the essentials of first aid kit like gauze and bandages; kids are prone to get a little physical when playing.
Even if you have kids on board during a long drive; you can make it a fun and worry-free if you know the things you need to bring along with you.