How many miles a day can we go?

I depends on how old you are and your ability to drive. When I was 21 I drove from Ct. to Miami straight through, took me 24 hrs. It took a whole day to recover. Mid 30's-50's with kids and a Hi top van I would leave Ct at 6:00 pm and drive until tired then wife would drive, basically 4 hrs off driving and then sleep for 4 hrs off and on. We made this trip twice a year for 52 years stopped only for gas and breakfast. Now that we are in our 70's and don't have to get back to work we stop half way after 10-12 hrs. If this is your first time there are some interesting stops along the way to see to break up the trip.