Posted By:
jeff sit's just not recommended. The USPS warns against it, and I know they won't let you insure cash. (Which would make sense if you had to send it, but were worried.)
I get it a lot from foreign buyers, and as far as I know I haven't had any problem with the cash arriving at my mailbox safe and sound. I also think that people use it a lot for <$10 auctions when the m.o. or check is prohibitively expensive as a percentage of the total.
Then again, I'm not sending/receiving mail in Berkeley...