roadtrip

Ok, so... I'm a huge sports fan and my dream is to visit every single ballpark of MLB in america and watch at least one of that team's home games. I would want to take a car and just drive from my house to every baseball stadium in order from where i live. How can I pursue this? Is there a...

or train? are there checkpoints when traveling in the US?

I'm 17 and I'm thinking about going on a road-trip or two within the next year. I'd really like some tips, because I'd more than likely go with a couple of friends in a Eurovan. Where would we park to sleep, how do we bathe? just stuff like that.. I'll appreciate ANY advice! thanks! PS. I...