As I pack stuff for Hubby and the MK's trip Hubby keeps asking me "do we need that?" Yes dear you need that. Trust me when you are at hour 5 of the 16 hour drive and MB spills his bottle of water all over himself you will be glad I packed a towel and extra water in the car. Yes you will need sunscreen, swim suits, pool shoes and floaties because the kids will want to swim as soon as they get out of the car.
Trust me when I tell you, you need the paper,markers,books and games I've packed it is a 16 hour drive. Oh and Honey... I packed you some Tylenol. You know just in case.