The ultimate in cheapness is even finding a way to get the cheap stuff for free. For you, my bottom-feeding friend, we serve forth these excerpts from The Cheap Bastard's Guide to SF a la free. http://www.thecheapbastard.com/books/sanfranciso.html

(Note that this is the site from the New York Cheap Bastard who started it all. When you're on the east coast, but sure to sample his wares.)