The Zürich Card (24 SF) gets you 24 hours of travel in the greater Zürich area on all trams, buses, trains, boats, cable cars and cogwheel trains, plus free entry into over 40 museums. It's available from the tourist information center.
Zürich Tourist Service. Hauptbahnhof, Bahnhofpl., Kreis 1, Zürich, 8001. 044/2154000; www.zuerich.com.