What’s being delivered?

With delivery being cited as a key contributor to city congestion, is it possible to reduce the size of delivery vehicles by delivering in bulk rather than in individually packaged items requiring further transport to remove waste?
An example is bottled drinking water or other liquid consumables. Can design provide a bulk package that allows a consumer to purchase a small quantity without compromising the safety or freshness of the product? Could a tourist visiting New Delhi confidently have a water bottle filled from a bulk supply or from a piped container that had been purified on site? Could the fizz be kept in a coke with a bulk supply product? Do the world a favour and get rid of the later all together.

Chris F