Hostels can be a less expensive alternative to San Francisco hotels, as you can stay in a shared dormitory. There are 2 hostels in San Francisco. Camotes Backpackers Hostel offers free breakfast and free in-room WiFi. RMS Travellers Inn - Hostel has free in-room WiFi and a 24-hour front desk.
What are the best cheap things to do in San Francisco?
Seeing the sights doesn't have to break the bank. For some things to do in San Francisco, you can get outdoors with a stop at Danao Lake.