I think the postage rate may have gone down a little. This is not a surprise as I got an email from the company that does the labels for my web shop (USPS has an API but it's awful enough to be worth having another company in the middle to make that sane) letting me know that most packages will be getting cheaper to ship. They of course framed that in terms of their mad negotiating skillz but it seems the truth is just that USPS is charging less.