I'm in LA and planning on a 3-5 days trip to North Cal... I'll be staying in Davis in friend's apartment. Been up there twice in my life but didn't do much...

Davis - saw lots of cows... and memorized most of the streets... A-Z and #s
San Jose - did nothing...
Berkley - smoked with a hippie outside.. foreal!
San Fran - Chinatown (sucks, it's a veggie market.. LA's is better) / Fisherman's Wharf

So this time I really want to see what else is there, got a few good buddies to go together. I still don't expect much from Davis but anything to do in San Fran?

Heard SF got this huge stripe that's suppose to not have the same girl come out twice in 2 hours? anything else? good club to hit?

edit: I don't have that much time there so I'll probably skip all the sight seeing.. Goldengates, etc...

is Napa close by enough for a one day trip? worth it?