You have the usual collection -- the crazies . . .
or the righteous . . .
But, in DC, you could also take the Fourth as an opportunity to visit your favorite neighborhood subway . . .
Finally, should have a mind to, you could also try to pay a visit to your friendly neighborhood Congressperson. There are a probably a few still hanging out . . .
But if you're like the rest of us, you will probably invite a few friends over for dinner . . .