Go postal.

SEE
So Many Products So Little Time: the Junk Mail Show
What: Twenty-plus artists pay homage to the litter that floods our mail slots and inboxes.
Why: One man’s trash is another man’s masterpiece.
When: Thru July 30. Opening, Fri., 6-9 p.m.
Where: Soap Gallery, 3180 Mission St., b/t Cesar Chavez & Valencia Sts. (415-920-9199).

SHOP
Loft 1513 Summer Sale
What: Get up to 40 percent off established and emerging labels (Invisible Hero Industries, iKohl) at the Noe Valley boutique.
Why: Gratis cocktails until 7 p.m. and live belly dancing when the sun goes down.
When: Thurs., 11 a.m.-9 p.m.
Where: 1513 Church St., at 27th St. (415-695-0201).

WATCH
Dirty Dancing
What: Catch a free showing of the movie that made you fall in love with Baby, Johnny, and carrying a watermelon.
Why: You’ll have the time of your life.
When: Sat., 8 p.m.
Where: Union Square, Post St., b/t Powell & Stockton Sts.

LAUNCH
SF Parkour Beginners Class
What: Learn the basic movements (vaults, landing, rolls) of this urban art form in a free 90-minute class.
Why: These stunts are off the wall.
When: Sat., noon-1:30 p.m.
Where: Justin Herman Plaza, Market St., at the Embarcadero.

CHEER
World Cup Finals at Pisco Latin Lounge
What: Take some consolation during the final matches with $3 beer, $5 cocktails, and a special tapas menu starting at $4.
Why: Even the bartenders know their soccer.
When: Sat. & Sun., 11:30 a.m.
Where: 1817 Market St., at Octavia St. (415-874-9951).

Photo: Courtesy of So Many Products So Little Time: the Junk Mail Show