Hello, I'll go to San Francisco, CA in two weeks :).
Well, If someone that live there WHO LIVES THERE or visited OR HAS VISITED give me suggestion these are very helpfully for me. I want to know how places you think I can't avoid to visit, How long I need to reserve some touristic place for example "Alcatraz". I don't know maybe you suggestion something that can be very important for me. And if you are in the same time in SF, let me know and we can meet.

Regards,
Juan

Well, if someone who lives there or has visited it can give me any suggestions, that would be very helpful for me. I would like to know of places you think I shouldn't miss, and how far in advance I would need to reserve tickets for a major tourist place like Alcatraz.  I don't know - maybe you will suggest something that could be very important to me. And if you are in SF at the same time...