From the North: Go south on I-95 to 495 toward Silver Spring. Go about 5 exits to exit 31, Georgia Ave south. Go south on Georgia about 1/4 mi, then watch carefully for signs to 16th St, which will veer off on the right. Stay on 16th St. for about 6 mi., turn left on U St., go two blocks and turn rights on 14th St. The Black Cat is 1 1/2 blocks down, on the left between S and T Streets. From the South: Go north on I-95. I-95 becomes 395. Continue on 395 over the 14th St bridge into Washington, D.C. Stay in the left lanes and follow signs for 14th St/Rte 1 N. Go straight on 14th St for a few miles, through a traffic cirle and up 10 more blocks. The Black Cat is on the right between S and T Streets.
Black cat does have a parking lot, but if there is no room, there are plenty of nearby parking lots.
By Subway: Green line. U St/Cardozo stop. 13th & U St. 1 block to 14th St. Turn left on 14th. The Club is 3 blocks down on your left.