I have one pair of socks ready to go and was waiting until I finished just one more pair to send them, hoping to send two pairs rather than one. I suddenly realized, though, that July ends on Saturday. So I asked Ann about the deadline, and she tells me that although there's no specific end date yet, it "won't be much longer." So I will send the finished pair, to make sure they get into one of those boxes, and then try extra hard to knit 1.5 largish socks this week.
In other words -- don't wait to ship!!
Picture tomorrow before they go in the mail (I'm over here on the East side of the U.S., and the post office is about to close).