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This weekend’s picks for free and cheap things to do in New York. Affordable cultural events in art, music, dance, theater, food and general fun.

1. Art/Photography/Talks- Momenta Art presents Occupy Your BFF.Occupy Museums (Occupy Wall Street) will use the gallery’s resources to activate critical dialogue about the relationship between art and the market. Opening Reception, Friday 9/14, 6pm to 9pm. Exhibit runs through 10/28. FREE

2. Art– Randy Polumbo: Love Stream at Steven Kasher Gallery. Fun light sculpture exhibit partly in an Airstream trailer. Friday 9/14 and Saturday 9/15. Through September 29th. FREE

Also in Art: Johan Freeman and Justin Lowe’s Stray Light Grey multi-room installation at Marlborough Gallery. (See post) Friday 9/14 and Saturday 9/15. Through October 27th. FREE

3. Art/Performance – Steven & William Ladd: Shaboygen at The Invisible Dog Art Center, Brooklyn. Opening Reception, Saturday 9/15, 6pm to 10pm. Performances 7 & 9pm. Through November 3rd. FREE

4. Film – Solar Powered Film Series, at Stuyvesant Cove Park. Friday 9/14 and Saturday 9/15, 7pm to 10:30pm. FREE

5. Music – FIAF Opening Concert with Bill Frisell, guitarist at FIAF Florence Gould Hall Friday 9/14, 8pm. Advanced $30. At door $35.

6. Fashion/Performance– Williamsburg Fashion Weekend at Windmill Studios, Williamsburg. Friday 9/14 and Saturday 9/15 Doors: 8pm, Show: 9pm. $15 in advance. $20 at door.

7. Art Installation/Party – House Party: Andrew Ohanesian at The Boiler. Faithfully creating a spatially accurate, quintessentially American suburban home, which he displaces from its native suburban landscape by reconstructing it within the walls of the Boiler, a repurposed urban-industrial space currently functioning as a contemporary art gallery. Opening reception (House Party) Friday 9/14 7pm to 10pm. The Boiler, 191 N. 14th St. Brooklyn. Exhibit up through 11/18. FREE

8. Music/Light Show – The Joshua Light Show. live, colorful, psychedelic projections behind various musicians and bands including John Zorn and Lou Reed, at NYU Skirball Center.  All weekend. Check listing for showtimes and bands. Tickets start at $20.

9. Architecture Walking Tour – Lost Streams of NYC, with photographer/historian Steve Duncan (see post). 2- to 3-hour tour (above ground). Saturday 9/15, 2pm to 5pm. $25

10. Architecture Talk – Andrew Moore: Images of Governors Island The renowned photographer gives an illustrated talk on the abandoned buildings of Governors Island. Saturday 9/15. 2pm to 3pm. FREE (the event is sold out, but it has been our experience with other talks, that not everyone who signs up, shows up.)

11. Architecture – Imagining the Lowline at the Essex Street Warehouse. A first glimpse at what the park might look like (see post). Starting Saturday 9/15 and Sunday 9/16 12pm to 6pm. Through September 27th. FREE

12. Music –Jim Lauderdale & The Honeycutters at Madison Square Park. Saturday 9/15, 3-5pm. FREE

13. Contest/Food– Chef One Dumpling Eating Contest, at Williamsburg Smorgasburg. Saturday 9/15 at 1 to 4pm. FREE

14. Food – Pig Roast at The Farm on Adderley in Prospect Park South, Brooklyn. Saturday 9/15 . 2pm to 8pm. $25/plate (including sides).

15. Dance – DanceNow at Joe’s Pub. Featuring the Top Ten Works from the 2012 DANCENOW Festival. Saturday 9/15, 7pm. $15 in advance; $20 at the door.

**UPDATES: Film – LCD Soundsystem’s Shut Up and Play the Hits at The Well, Brooklyn. Saturday 9/15, 7-11pm, 18+ to enter. FREE

Food – Unsold Supper in Union Square. Farmers contribute unsold produce that gets cooked and shared in exchange for creating a gift for the farmers. Barter of craft for food. Saturday 9/15, 4 to 6pm. FREE

Fun – NerdNYC’s RECESS a day full of tabletop games, from cards to Trivia and more at 440 Lafayette St. 18+ with ID. Saturday 9/15, 11am to 10:30pm. $20.

Check back for possible updates and take a look at our previous Culture on the Cheap posts for additional ideas. Enjoy!