In DC for a day or a week? local? DCIFF’s DC downtown page is there, here
We have a page that is clear of rubbish – simply put and simply online – it’s DCIFF’s DC page for those who need to find a location in DC (a Google Map,) how to get there on transit (Metro trip planner, what the weather will be like (the Weather Channel), and if you need to call someone overseas or on the West Coast, a time zone calculator.
Bookmark it, mobile-friendly too.