Family Road Trip

Also one more question for you guys, are the parks usually full, meaning should I try to book ahead like a hotel or is it pretty normal to just pull up and have plenty of room?

That depends on where you're going and when you'll be traveling. National parks, especially the well-known ones, can be pretty booked up well in advance, and it might be difficult to find a spot for your rig in (or sometimes even near) one. We have found that state parks, and campgrounds near popular tourist spots, tend to fill up especially on weekends and over holidays, and it's hard to find campsites then too. Campgrounds along the road, say along I-80 in Nebraska, will likely have a few spots available almost anytime - but then, that's their basic function, as overnight spots for travelers.