Only thing I can add about going through town, especially on I-75, is to stay out of the left and right lanes. The left lanes can lead to a short ramp and dead end to left or right. We had a bus load of college kids crash after the drive made a wrong exit a few years ago. Several were killed. Stay out of the extreme right as well. Too many people entering the interstate causing things to slow down and making you change lanes. Pick a lane toward the middle and stick with it. Try to run with the traffic as bet you can, but leave a little buffer between you and the guy in front. Watch the signs and if you intend to 85 south, then start working toward the right when you start seeing signs notifying you of it coming up