Newbie to Washington. Wife and I are taking our children, and daughter's friend, to visit in August. We are staying in Arlington and want to take the metro over to the city to tour. I am on the Metro's website and am trying to figure out what the most economical choice is for a metro pass for 5 of us. Can I buy 1 smarttrip pass and use it for everyone? Any discounts or better way to do this? I have figured out that Rosslynn is the metro we will be departing from but.....Anyhow if anyone can suggest, comment, help me make sense it will be much appreciated! THANKS, Jeff.