I disagree with this one.  In many places in 
the US, filterered water is much healthier than
tap water.  Distilled water is just water
and nothing else.

Aside from all of the stuff that 'accidentally'
gets into tap water, many cities add things
like flouride.  While this might sound
healthy,  this is not the flouride that
your dentist uses.  It is usually industrial
grade (ie.  waste material)

You make a good point about the gasoline and
the packaging, however.  We use 5 gallon bottles
that we refill every few weeks, and usually, 
I am doing something else right near the water
store.