As I read all this driving time, I wonder why not fly? My experience is, if you are flexible with your dates, you can catch a cheap SW or AT flight. For me this last time it was $160 for my daughter and I. Then $55 for a compact rental car for 3 days.
For me It would be worth another $160 If I had my wife and another person to go. My dad loves to drive. I feel like anything over 6 hours I will try and fly.
Driving Is tiresome. Flying Is not the most fun thing, but at least you can wake up, fly , get to Florida, and still enjoy the first day of your vacation.
When you calculate the expense of gas, wear and tear on your car, hotel room (for the overnight and return drive, probably around $100) the time, plus the condition your body feels after riding in a car so long, flying seems to be a much better way to travel. I've hit some crazy traffic jams before and the stress related to this probably has taken years off my life. LOL