Q: Where's my package?
USPS: We dunno. And anyway, we're on break.
Last year I switched all my business shipping from Priority Mail to a FedEx account. I can track every step of the way, prepare my labels online, and pay less for Express Saver than I did for Priority Mail, and know it will be there in 3 business days, every time, unbroken and unstolen.
FedEx is eating their lunch.