Heh. Still haven't done the ConTemporal review yet. And my other reply to you in the other thread didn't talk about how I got to ConTemporal.
That was doubly special, as I didn't leave town until mid-afternoon. However, I had allotted two days for the drive, so it was all more-or-less in the plan. I ended up driving around six hours the first day, stopping off in Ripley, WV, and getting up and out the door fairly early the next day, which is good because there were small delays along the way -- weather here, construction there, nothing dire.
As mentioned in the other answer, pacing is everything. You have to stop now and then to recalibrate and refuel. An actual meal is better than snacking, and protein is essential. (I often stop for a Wendy's Double Stack, or a McD's Mighty Kids meal, which for less than four bucks gets you a double cheeseburger, Coke, fries, apple slices, and a toy!)
A couple of times on the road into NC, I pulled over for five or ten minutes of Not Driving, eyes closed, car off, zen zen zen. A couple of times on the way back, I missed the best turn, and probably added an hour to my overall journey; but it was no big, I knew I was headed in the right direction, just hitting the corners of a triangle rather than the hypotenuse. And I was much better with I-77 this time. Some of that was simply driving during the day (which I really, really recommend anyway, but especially if you don't know the roads or are in the mountains).