Depending on how many and who the occupants are (adults only or children as well);
Keep water, coke / juices, sandwiches, biscuits, etc. Things should be easy to eat, while driving. We decided not to stop at any hotel on the way, just to save time, because we had a baby with us as well so that way the drive would have had been very long, so instead took stuff like sandwiches which I had while driving.
VERY IMPORTANT: keep a pair of sunglasses with you, if you will be driving. At times, you are driving in a direction where the sun is shining directly in your eyes, which makes it very difficult to focus on driving.