This weekend, the Marina Happy Hour Cleanup runs through the Civic Joy Fund — volunteers who show up to pick up trash along the waterfront get free drinks afterward. Register on the Mobilize page linked through SFFuncheap. It's a few hours outside before the payoff, and the Marina stretch near Crissy Field is genuinely pretty in the late afternoon. Muni 30 drops you close on Broderick.

SOMA Nights: Chinatown After Dark is a free event exploring Chinatown's nighttime scene — no ticket, no RSVP listed, just show up. Details are light, so check the SFFuncheap listing for the exact address before you head out; "SOMA Nights" events have moved locations before.

What's different this week is the spread: you've got a DJ bar night, an outdoor social with a service hook, and a neighborhood cultural walkabout, all at zero admission cost. That's three distinct formats if you want to hit more than one.

If you've got two hours: Do the $1 Drink Fridays in North Beach. RSVP now, show up around 9pm, have two drinks for two dollars plus whatever well pours cost, and you're out before last call chaos. Park on Vallejo if you're driving — not Columbus.