I live in Michigan and we drove straight through all the time when I was growing up. At the time I lived in Northern Michigan and it was a 24 hour drive. My Mom and Dad always did all the driving themselves. This last trip that we just took in June consisted of myself, My DH, our 2 DS 5 yrs and 9 mos and my Mom. I now live in a Northern suburb of Detroit and although we weren't planning on it, we ended up driving straight through on the way down. My Mom and I did all the driving. I guess it was just the adreneline and excitement that kept us going because we didn't even leave here until 4:30 in the afternoon after DH finished with work! With potty breaks, a good break for breakfast as well as a stop at the Disney Welcome Center in Oscala, FL we arrived at WDW at 1 o'clock the next afternoon! 21 hours in all!