San Francisco on a Budget
One NY Craigslister sent a note to the community asking whether anyone has any hotel-hook ups in the San Francisco area, as "hotels are so ridiculously expensive."
Well friend, here are some suggestions:
Last Minute Travel, has some hot deals (but maybe not at the hottest hotels.) You can stay from $36/ night at The Abigail Hotel, and the third night is free. Location is central, but recent guests characterize it as a "rat hole" or "dump," one guest even went so far to say "We took one look at the room and walked out."
OK, that was an extreme example. LMT also has 4 star places for $74/night.
If it's free you are seeking, check out the Hospitality Club. It's a free organization hooking up travelers and places to crash.