A friend of mine and I are driving to Boston this summer to pick up her daughter from a summer ballet program. We are driving to Alexandria and spending a couple of days in DC before we head the rest of the way up, but don't know the best way to go. We've heard you can sit in traffic for hours if you take the NJ Turnpike and the tolls are very high, but how high? Is there a better more scenic route to take since my 7 yr old and 12 yr old are going with us? Any advice would be greatly appreciated. Thank you!