Public facilities are in forest-green kiosks at Pier 39, on Market Street at Powell Street, at Castro and Market streets, and at the Civic Center. The fee to use the facilities is 25¢, although it's free at some places. Since they're self-cleaning, they're usually tolerable. Most public garages have restrooms, and large hotels usually have lobby-level facilities, and chain bookstores are another good bet.
Find a Loo
The Bathroom Diaries. The Bathroom Diaries is flush with unsanitized information on restrooms the world over—each one located, reviewed, and rated. www.thebathroomdiaries.com.