Yesterday, I placed an order with 3 day shipping, but the package was delivered today. It used to be UPS would hold my packages until the delivery date (just for spite, I'm sure).
Thanks to adafruit for the quick shipment!
I have NEVER had UPS do this (hold a package that is "early") - early packages happen a lot when I order photo equipment and such from NYC - where I live is basically guaranteed overnight delivery from NYC and central NJ (even with USPS!).
FedEx, however, does it all the time, which is one of two reasons I go out of my way to avoid vendors that use FedEx. (The other being that FedEx's pickup facility is an hour away, while UPS's is 20 minutes. I've had some close calls with signature-required packages and FedEx.)