In honor of the Phillips Collection’s 90th birthday, D.C. Mayor Vincent C. Gray has declared Nov. 5 Phillips Collection Day. The storied gallery, one of the most prestigious in the city, is celebrating by throwing wide its doors. Everything — and we mean everything — will be free. The cupcakes will be free (while supplies last). The exhibits — “Degas’ Dancers at the Barre: Point and Counterpoint” and “Renoir’s Luncheon of the Boating Party and European Masterworks” — will be free. And, for the cheap, low price of absolutely nothing, visitors will get to hear ABC7’s Ben Eisler sing “Happy Birthday,” as well as accordion and a cappella performances by Manny Bobenrieth and the Capital Hearings, respectively. If you can’t spring for FotoWeek’s posh opening (or even if you can!) consider hitting the Phillips. Nov. 5 at the Phillips Collection, 1600 21st St. NW. Phone: 202/387-2151. Web: www.phillipscollection.org/.