Sept 24-25 Das Best Oktoberfest at National Harbor, MD. (right across  the Wilson Bridge). Noon to 6pm. $25 admission. Fun for aupairs of legal age.

Sept 25- Latino Festival in Colombia Heights, MD  from noon-7 with a parade beginning at 1:30pm. See www.fiestadc.org. Best way to go is to take Metro, blue or yellow line, to L’Enfant Plaza and then take green line to Colombia Heights. This is a well known and big area happening.