Here is a great checklist if you are going to be traveling with an infant.
This is a great article for things to keep in mind when road tripping with your baby.
Car Travel with an Infant
Tips from this article I actually used. I made sure that I had pacifiers in reach at all times. I could reach back and give them to Kaitlyn when she needed one. They mention plan on stopping 3 times more than you would if it was just yourself. I did my best to plan my stops around Kaitlyn's schedule. However, we did stop 3 times that would not have been stops if I were alone.