IN Washington, D.C., coffee shops close at 4:30pm. I was disappointed by this fact when I was returning from an event, as I had planned to enjoy an afternoon cup of coffee at a coffee shop near the White House. When I passed the cafe the previous morning, it seemed like a nice enough place. There were small tables and chairs on the terrace. If you fancy a post-coffee walk, Farragut Park was just at the end of the block, filled with people re