If you cannot find it at Eastern Market, you can probably get by without it. This vast, sprawling marketplace has everything from fresh produce to meats to artwork to collectibles to antiques to you-name-it.
It was first established in 1805, and moved here (to the South Hall) in 1873. The Center and North Halls were added in 1908. It's on the National Register of Historic Places.
Recently, Eastern Market was badly gutted by a fire. The mayor has pledged to rebuilt it, but this will take some time. Please check the website for updates.
This wonderful shop was originally started in New York. In Washington you will find a shop in Georgetown. It is well worth a visit. Very interesting and excellent produce, although on the expensive side.
Good wine selection.
Hours: Mon-Sun 8am-9pm
A fantastic spot, especially on the weekends. In warm weather restaurants have seating outside and the doors of shops are thrown open. Lots of upscale types of things in the stores, but you can find great bargains in the market itself. The indoor food market has everything you could want and they have it fresh. Also a wonderful spot for people watching. Eastern Market has my favorite used book store and a great Mexican restaurant.
While the rest of the stores might be pricy, check out Filene's Basement.. This should actually go in the tourist trap as you can spend a lot of time and money in this shop, but come out with tons of new clothes. Designer labels at discount prices!
Try visiting the (too small) shop with native american art at the department of the interior.
You need to take some ID to get inside the building but the shop carries some great stuff.
The fact that it is so small, that it is unique and that (almost)nobody knows about it, is typical of how the US used to treat (and apparently still do) their native citizens; it's a downright shame!
For our shopping in the DC neighborhood, this time we went to the Leesburg Outlet in Virginia (approx. 40 min. drive)