Yea Jack, not much you can do with Balt/DC. Most alternative will add alot of miles or just as much traffic.
As far as Richmond/Petersburg.....just use 295 around the east side of both.
In Jax you can use 295 around the west side, but it's about 15 miles longer then 95 and if you don't hit Jax at rush hour, i've always found 95 to be faster.
Good Luck with your trip, and have fun & be safe!!!
