Marsee Henon from O'Reilly tells me that I could win a big prize if I bring the most old O'Reilly shirts to OSCON. They want to take a bunch of pictures of people wearing the previous versions of their shirts. There are prizes.
The first 50 people wearing an O'Reilly shirt to show up at the O'Reilly booth get a prize too. I have no idea what the prize is, but I know there is a new Perl book out this month