Clothes on Rack
Pink Rose Earrings
Museums and Experiences
The Smithsonian Museums are a must-see while in DC. Among my personal favorites is the National Arboretum (hardly any tourists go there because it's off the beaten path) and the National Zoo. 
Here are some links to non-Smithsonian Museums and Experiences that are just as great:
The U.S. Holocaust Museum
Koshland Science Museum
African American Civil War Museum and Memorial
National Museum of Women in the Arts
Hillwood Estate and Gardens
The National Museum of Health and Medicine
Museum of the Bible

Shopping Mall
World Class Shopping
When people think of DC they usually think of museums, monuments and politics but the DC area also has world class shopping experiences.


Here are some links to local shopping that will make you want to buy an extra suitcase so you can take all the stuff home. 
Eastern Market
Union Market 
Pentagon City
Tyson's Corner
Old Town Alexandria
Ballston Quarter (Walking distance from Arlington House!)