We try to limit on the road time to about 6 hours. The distance depends on whether I am on interstates or not. DW likes a call ahead reservation so, I give her a target and she finds a campground and calls.
We don't use Wal-Mart or rest areas because I need 110VAC for my CPAP and I wont run the generator overnight for that.
I strongly recommend the following:
A GPS (I like/trust Garmin. I have been to Alaska with the Garmin and my son has Garmin in his airplane).
The Next Exit book. Shows RV accessible gas and food in red at each interstate exit.
There is a campground app GS CAMPING that shows most campgrounds on the map by state or city. We use it all the time to find campgrounds.
Woodall's also has good directory.
Life is a journey, not a destination.
2005 Georgetown 359ts
Bill & Virginia, Kentucky
Nights camped in 2011...78 , 2012...73,
Nights camped in 2013...123, 2014 ...101