Ok, I'm actually asking this for a friend since he doesn't have access to the net. I tried to do some google searches and haven't found my answer, so I thought I'd try here. My friend is going to be moving out of his apartment coming up next month because his roommate flaked. He isn't going to have the money to get another place right away, so he is going to be staying with a friend. However, he needs somewhere for his mail to be sent in the meantime. Can he get a P.O. box without a physical address? And if so, about how much is a P.O. Box? Any help is appreciated! Oh, and he can't have his mail forwarded to the house he will be staying nor can he use this address to get the P.O. Box. Thanks in advance.

P.S. He lives in California, if this is of any relevance.