San Francisco CityPass: There are four attractions covered by this card and you have your choice of visiting two at a steep discount. However little you plan to use it, this card will be a good deal in most cases. The places included are some of the most important in San Francisco.
Go San Francisco Pass: Saving money is guaranteed by steep discounts on guided tours, bay cruises, and a variety of performances and shows, as well as free entrance to 25 different locations.
Think about doing free things like visiting popular sites like Chinatown, Fisherman's Wharf, Golden Gate Park, and the Golden Gate Bridge. The entrance to the park is free, but admission to the park's attractions may be charged.
Visit the Oakland Airport (OAK), which is close to the heart of San Francisco, for some inexpensive shopping.
Additionally, Union Square's half-price ticket counter provides savings for several acts on the same day.