A pirate’s life for you. BOOGIE Metro DC Dances What: Watch locals DCypher Dance Collective, Move Project, Furia Flamenca, and others for free. Why: Metro opens cores. When: Sat., 7:30 p.m. Where: Carter Barron Amphitheatre, 4850 Colorado Ave. NW, at 16th St. (202-426-0486). SLICE Weekly Knife Sharpening What: Let the pros get your blades a cut above the rest. It’s free, too! Why: Give yourself an edge. When: Sat., 11 a.m.-2 p.m. Where: Union Street Public House, 121 S. Union St., Alexandria (703-548–1785). IMBIBE Caribbean Rum Tasting What: Cafe Atlantico embraces the sticky summer heat with a gratis sampling of several labels, including Appleton and Neisson. Why: Rumming releases endorphins. When: Fri., 4-6 p.m. Where: 405 8th St. NW, b/t D and E Sts. (202-393-0812). WATCH Comcast Film Festival What: Pull up a lawn chair for more comp entertainment — alfresco screenings of the new (The Dark Knight) and classic (Singin’ in the Rain). Why: Donate or buy raffle tix to benefit charities at the National Institutes of Health. When: Fri.-Aug. 21. Daily, 8:15 p.m. Where: The Mansion at Strathmore, 10701 Rockville Pike, Bethesda (301-816-6957). SIP YinYang Rosé What: Local sommelier and wine connoisseur Andrew Stover created a fresh summery blend of pinot gris and dolcetto. Why: Not every rosé has its thorn. When: You’re thirsty. Where: Dean & Deluca, 3276 M St. NW, at Potomac St. (202-342-2500).