chai, You PITA you. Milkmen arrived very early in the morning. This was not an all-day delivery thing. Maybe somewhere between 5:30 and 6:30. When working stiffs and stay-at-home types got up, they would open the front door and the milk would be there. Still cold.
When you finished the milk, you would rinse out the bottle and leave it outside the door. If you had to tell the milkman something, you would write a note and put it in one of the empty bottles. For example, when I was home and my parents were away for a while, I had to tell the milkman not to leave two bottles. One would be fine. Note in bottle.
We lived in the south Bronx. The 42nd precinct. Yes, Fort Apache. No one ever stole our milk. No one ever robbed us when we were away.
The same procedure was followed for seltzer delivery. The seltzer man would leave the bottle outside the door. My cousin who lives in a Greenwich Village walk-up had seltzer delivery up until about ten years ago.
If you had an irregular schedule or often didn't know when you'd be home, then go to the steenkin' supermarket and get your steenkin' milk.