You can get most of the way across country with no tolls. Go to 70 and take that across to Indy then run up to 80 on 74. Then when you have a number of options to go up to 90. I run cross country all the time. I usually head north in the spring around I 35 in the summer and fall I go to SD and turn north to 90. You can cross country that way with no tolls. It is not much further then the pa pike and the Ohio turnpike. That way you will pay tolls in PA, OH, IN and IL.