I've always thought that standardized drone landing pads are the obvious and inevitable solution. For commercial addresses with a flat roof, this is rather easy

I've always thought that standardized drone landing pads are the obvious and inevitable solution. For commercial addresses with a flat roof, this is rather easy. For many residential addresses it may be a little trickier. Most houses probably don't have a weather-proof area that doesn't require some machinery (e.g. a conveyor belt to move a landed package into a garage) or a tricky drone landing (e.g. a covered back porch).