I'm pretty much never home when the UPS guy swings by my apartment and I order enough stuff that I wouldn't want to inconvenience my neighbors two or three times a week asking them to grab it for me.
You could just indicate when you're going to be home and they can drive by at that time.
In Japan, all the delivery services let you indicate a precise 2-hour window when you want the delivery. With automated drivers, this could be feasible in the U.S. as well.
