From showers to flowers. BUY Big Swap Bonanza What: At the offshoot of the Chicago Antique Market, Soldier Field’s south parking lot morphs into a huge yard sale with hundreds of vendors. Why: Barter with the best of ’em. When: Sat., 7 a.m.-3 p.m. Where: 1410 S. Museum Park Dr. (312-666-1200). SEE Next 2009 What: Exhibition of emerging artists (Julian Rosenfeldt, Ben Gest, Coke Wisdom O’Neal, more) is the experimental counterpoint to Art Chicago. Why: Your collection starts here. When: Fri. & Sat., 11 a.m.-7 p.m.; Sun., 11 a.m.-6 p.m.; Mon., 11 a.m.-4 p.m. Where: The Merchandise Mart Plaza, at Wells & Kinzie Sts. (312-527-4674). The Talking Pictures Festival What: Evanston’s first indie film fest showcases more than a dozen full-length features and shorts from both local and international filmmakers. Why: Slingshot Hip Hop, a doc about the Palestinian rap scene, will get you talking. When: Fri.-Sun. Schedule online. Slingshot, Fri., 7:30 p.m. Where: Venues throughout Evanston. For locations and tickets, go to talkingpicturesfestival.org. Slingshot, Boocoo Cultural Center and Cafe, 1823 Church St., at Dodge Ave., Evanston (847-864-4330). GO LaSalle Power Co. What: New rock-inspired bar/resto has a top floor with free live music, comedy acts, and deejays. Why: Take a power trip. When: Opens Fri. Sun.-Fri., 10 a.m.-2 a.m.; Sat., 10 a.m.-3 a.m. Where: 500 N. LaSalle St., b/t Kinzie & Hubbard Sts. (312-661-1122). GLIDE Free Commuter Water Taxi What: Shoreline Sightseeing boats charge nothing to ferry you between Sears Tower/Union Station and the Michigan Avenue Bridge. Why: Make waves in the workday. When: Fri.-May 15. Mon.-Fri., 7-9:30 a.m. & 4-6:30 p.m. Where: Boats depart from 200 S. Wacker Dr., at Adams St. & 401 N. Michigan Ave., at Wacker Dr. (312-222-9328).