Thai is my favorite cuisine to eat in DC. There are a lot of great places to get it, and some not so good ones. These are in order by tastiness, so start at the top. Go spicy or go home!
Carlos Montano: There are a lot of good Thai places in DC, but this one is best. Get the chef's daily menu and bring a nice bottle of something (and pay no corkage fee). You won't regret it!