You have 29 days to plan your costume. HEAR Hardly Strictly Bluegrass What: Stop by the free concert in GG Park with headliners like Robert Plant, Emmylou Harris, and an appearance by MC Hammer. Why: Can’t touch this. When: Fri., 10:30 a.m.; Sat. & Sun., 10:45 a.m. Where: Speedway Meadow, Golden Gate Park, b/t John F. Kennedy Dr. & Middle Dr. W. See map. GRUB Paul K Brunch What: Hayes Valley joint opens doors early on the weekends to serve its signature bloodless Mary martini made with tomato-infused vodka. Why: Special K. When: Sat. & Sun., 10:30 a.m.-2:30 p.m. Where: 199 Gough St., at Oak St. (415-552-7132). DO Ride the Rails What: Take any local rail system (BART, Amtrak, Caltrain) into SF and save 20 percent on your stay at any Kimpton Hotels property. Why: Wheel and deal. When: Thru Dec. 30. Where: Book online at kimptonhotels.com. DRINK Around the World in 80 Sips What: Join Bottlenotes founder Alyssa Rapp for a wine tasting as she toasts her new book. Enter code DAILYCANDY at checkout and get $15 off your ticket. Why: Sip, sip, hooray! When: Fri., 6-9 p.m. Where: Frey Norris Gallery, 456 Geary St., b/t Mason & Taylor Sts. (415-346-7812). SHOP Rebecca Beeson Sample Sale What: Score frocks, tops, and sweaters from the spring and summer collections at up to 60 percent off. Why: It’s no fabrication. When: Sat., 9 a.m.-5 p.m. Where: 1345 Howard St., b/t 9th & 10th Sts. (415-865-0471). NIBBLE Coco-luxe Caramels What: Local artisan chocolate shop launches new line of chewy bonbons. Why: Bite me. When: Daily, noon-8 p.m. Where: 1673 Haight St., at Cole St. (415-367-4012).