SF has all the standard department stores, which you probably have back home. On the more unique end, I particularly like Desigual, Jigsaw, Allsaints and John Fluevog.
I haven't gotten a chance to explore all the independent boutiques and consignment stores yet, but Audi has a great list of places here:
http://geekthreads.blogspot.co.....art-1.html
Thank you for mentioning Jeremy's. I had never heard of it before, so I'll be finding my way there sometime this weekend.