There seem to be some great happy hours going on tonight, so we figured we'd make it a theme!

POLK GULCH: Via the Guardian's very handy events newsletter: "Bay Area rock legend and diehard Beatles obsessive" Russell Quan will be hosting a free Hellraiser happy hour, Quan Buy Me Love, featuring drink specials and a Beatles Trivia Contest for fantastic prizes, including tickets to Beatles Fest West next weekend.

6 to 8:30 p.m. // McTeague’s Saloon (1237 Polk St) // free

THE MISSION: Every Wednesday at the Knockout, sushi chef Tim Archuleta serves his restaurant-quality sushi treats at recession proof prices during the ICHI Sushi Happy Hour. Get a deal on a can of Hamm's or some sake to pair with your $4 roll or $3 nigiri. Large groups are advised to call in advance.

6 to 9 p.m. // The Knockout (3223 Mission St) // $3-4

INNER RICHMOND: Namu Restaurant, who utilize organic, local and regional ingrediants, offers special bar bites and more Monday through Friday.

5 to 7 p.m. // Namu Restaurant (439 Balboa St)

ADDENDUM/FUNDRAISER: Folks from the UCSF Memory and Aging Center will be guest-bartending at Elixir to raise money for Alzheimer's research and clinical services in Northern California. Cans of Hamm's will be $3, and for every purchase of Paulaner Hefeweizen, $1 will help fund the agency's Memory Walk, which takes place Saturday, October 10.

9 p.m. // Elixir (3200 16th St) // free