(to save any confusion - I am an Aussie woman living in Japan and my boyfriend is Japanese).

My boyfriend just found out yesterday that he is to start his 3 month job training near San Francisco as of this Sunday. Very short notice!

We have looked up the climate and it seems it is mild. Are jeans and a couple of sweaters sufficient?

Is it possible for him to buy Japanese grocery items? I know there are Japanese restaurants, but can he buy such things as mirin, miso paste and cooking sake in Asian grocery stores?

What forms of ID are required for getting a video rental card and library card? Would his passport be enough?

Anything else anyone can tell us about this area is most welcome! Thanks!