Package delivery by USPS is cheap and reliable, e.g. for 3rd-party online sellers.
Found it two houses down from mine.
I'm actually slightly amazed that the local mall doesn't talk to the various delivery companies and just "give" them an unused store front to setup an automated box for every company inside of it. I imagine the increase in traffic TO the mall would more than make up for the loss of otherwise unused dead space.
In my area, USPS is by far the best carrier for parcels, especially for residential delivery.
Having a reasonably well run, national organization with an obligation to serve every home and business is a wonderful thing.
Seriously, what driver would think it's appropriate to leave a bunch of imac pro boxes with a (thankfully in my case good natured) neighbour?