How could we design/modify our homes to receive these packages? Santa Claus-chute for things to slide down? Helicopter landing pad in the front yard? How can we sort the packages/letters into their individual receptacles? This could save US mail carriers a lot of effort.
Interesting. Maybe a new type of mail box in the roof for houses (as you suggest), and some kind of Amazon Locker with a landing pad on top for the apartment complexes. Combining drones with a better mail box would allow the asynchronous delivery of packages.