I am trying to organize a group outing for cinco de mayo. We'd appreciate something that won't be jammed (if you know of any small, special places), any good deals, or simply the best place to get a margarita in DC/NoVa. So we're thinking either cheap and decent, or simply amazing.
We're willing to drive, too, if you know of any special mexican places out in nova that are worthwhile.
So far I've got recs for La Loma downtown, Casa Oaxaca, Don Pablos... but nothing really SPECIAL.