This depends on the ambient level of crime where you live. In my family's home (way out in the middle of nowhere), all packages are just left on the porch (this lax approach allowed me to later leave my backpack in my car overnight in Santa Cruz proper; the window was smashed and the backpack stolen). When I was in San Francisco, leaving packages at your door was apparently not to be thought of.
Personally, I can see the appeal of the strategy "just don't have crime"; things are a lot more convenient that way.
Personally, I can see the appeal of the strategy "just don't have crime"; things are a lot more convenient that way.