What happened to the milk man?

When I am pondering a better, greener way to accomplish something or to have something, I often find the simplest answers in old school ways of doing things. For example, what happened to the milk man? Before the plastic era, milk was delivered to homes in glass returnable bottles, by a local company, with milk from local farms. Fabulous idea! Could other beverages be added to this service, such as fruit juices? Fresh fruit juices and milk spoil quickly, and require frequent trips to the store in order to keep in stock at home. Wouldn't it make sense for a milk delivery service to plan out efficient routes for their drivers, reaching more homes, and ultimately requiring less fuel per beverage sold than all of those clients going out to get their milk and juice at a store? They'd do very well, fuel wise, with the use of electric or hybrid vehicles for delivery, as in stop-and-go driving these get the best milage. If I got wind of a local entreprenuer starting up such a business, I would likely be one of the first in line for this service. Any other ideas?