Population density helps with making deliveries more efficient, at least in urban areas. Just down the street from me there is a mini delivery center (just the

Population density helps with making deliveries more efficient, at least in urban areas. Just down the street from me there is a mini delivery center (just the 1st floor office in a regular building) where packages are sent before they are pushed out in carts to buildings in the surrounding area. The last mile is really easy when everyone lives on top of each other. That said, it's not all perfection. Recently one of the large delivery companies had problems fulfilling all its evening delivery slots and the number of re-deliveries weren't helping. I think every building should have lockable delivery boxes at the front door as standard, then almost all packages can be left without customer interaction.