I usually travel from Orlando to Chicago via Washington DC in a sleeper, but this time I'm taking my niece with me and we are going coach. Since we have several hours in DC, we'd like to take in a museum or just walk around the city, as she's never been there. When I've done this before, I always leave my carry-ons in the lounge, but I know I can't this time. I read in the Chicago station you can pay a fee to keep your luggage in the first class lounge. Is there such an option in DC? Thanks.