So I'm going to be in San Francisco this weekend (for an interview) and I'd like to explore the town a bit. Are there any neat shopping areas to check out? I've only been there once, and only briefly. If I am to get an offer from this job the city life would have a big influence on my decision to take it so I'd really like to see some of SF's best. Oh, and how bout some fun night life (club/bar/concert)? Thanks.