XM or Sirius, for a never ending selection of music to fit the mood
Laptop w/ GPS receiver to keep on track
Red Bull & various snacks
I drove from Memphis to Miami (14 hours) and made it, but damn did I feel cracked out from the 3-4 Red Bull. Will be driving from here to Minneapolis next week, but luckily will have 2 other drivers in the car with me to alternate shifts 🙂