I have to commute to DC for the first time next week, and found on slug-lines.com that at Bob's there is a "new" line that goes to Navy Yard. Has anyone had success going to Navy Yard from Bob's? I guess my worry is there won't be many people going there because it's new. More importantly, I'm confused about getting back. When I look at which lines exist at Navy Yard, there are only two. One goes to Stafford and the other goes to Woodbridge. Why isn't there a line that goes back to Bob's? I've noticed for many locations there is a line that goes there but no lines that go back or vice versa. Sorry, I'm a newbie and a little confused. Any help would be appreciated.