Do the shutterbug.

LOOK
A Year in Polaroids
What: The bloggers behind Polaroid SF spent a year taking one photo of the city per day with a vintage Land camera; their one-night-only exhibit displays each shot chronologically.
Why: Spaziale will spin rare ’70s disco tunes and prints of the best Polaroids will be available for purchase.
When: Fri., 5-10 p.m.
Where: 111 Minna Gallery, 111 Minna St., at 2nd St. (415-974-1719).

SHOP
Alameda Point Vintage Fashion Faire
What: Get your Joan Holloway on with help from an impressive selection of decades-old clothing and jewelry; wear your best vintage ensemble to win $100 of free shopping in the costume contest.
Why: The Friday-night preview party includes live music and cocktails from neighboring St. George Spirits (and comes with free admission to the main event the next day).
When: Fri., 6-9 p.m. & Sat., 10 a.m.-5 p.m.
Where: O Club, 641 W. Red Line Ave., at Pan Am Way (510-522-7500). Tickets ($10, or $5 after 11 a.m. on Sat.) at the door.

BEFRIEND
SPCA Adoptathon
What: Been thinking of adopting a furry pal? SF’s largest animal shelter offers free adoptions of every adorable dog and cat this weekend.
Why: The festivities kick off on Friday night (5-9 p.m.), with cocktails, music, and Cajun fare from the Voodoo Van.
When: Fri., 1-8 p.m.; Sat. & Sun., 10 a.m.-6 p.m.
Where: SF SPCA, 201 Alabama St., at 15th St. (415-554-3000).

WATCH
24-Hour Play Festival
What: It’s as high-stakes as theater gets: Playwrights, actors, and directors have just 24 hours to put together a staged ten-to-fifteen-minute play.
Why: Stick around after the show for bites, wine, and a raffle.
When: Sat., 7:30 p.m.
Where: Studio 250 Theatre, 965 Mission St., at 6th St. For info, call 925-212-4964. Tickets ($15) at brownpapertickets.com.

PARTY
Rock Make Street Festival
What: Catch live performances (John Vanderslice, Tartufi, and Burnt Ones) on two stages, plus a bevy of food trucks.
Why: Browse a selection of nearly 75 arts and crafts vendors, hawking everything from handmade hats to photography prints.
When: Sat., noon-7 p.m.
Where: Treat Ave., at 18th St. Admission ($3-$5 sliding scale) at the door.

Photo: Courtesy of Polaroid SF