I heartily second MaryannF's recommendation. Other things in there: the usual location of speed traps; lane navigation that turned me from a crappy navigator ("uh, I think we should have turned back there" to "in three miles you're going to want to be in the left lane"). We followed his motel chain advice on the way down and stayed at a Jameson Inn--and were so satisfied that we immediately booked a different one for the return trip. I see this year he's discovered Drury Inns, which are, if anything, even better.
You can trust his "Insider Tips"--he keeps trying them out year after year, dropping the ones that have declined.
I just found the trip seemed to go by so much faster with that book.