Ive been to a few before. Just wash the shit twice after you wear it. Youll find some cool shit. Just go to the ones that buy used clothes. Like Buffalo Exchange they have some in Shattuck and Telegraph in Berkely and on Haight St.. Workers told me that since the recession, people are desperate and selling their clothes. They got some Designer clothes and everything youll see at the macy's and shit in those stores but I dont know about the regular thrift stores where people just give away shit.
My homie use to come up at those places. His family is filipino and whenever they come back from their Homeland, they always bring him bootleg gucci, burberry clothes. His family gets them for $5 each and he brings them over to them stores and they buy them off him for $40 each. They never know they are fake. lol