Anyone very familiar w/ san fransisco?

If you're only bringing $300 then forget about driving to Yosemite and all that. I would just stay in the city. Definately do the wharf, alcatraz, cable car, lombarad, ggpark, chinatown, coit tower. Maybe hit up some museums too like the MOMA. Go to like hotels.com to find a cheap hotel. Hotels I would recommend in Union square are the Westin, Hyatt, sir francis drake. Streets you wanna stay away from are Ellis and Eddy.