oneshott wrote...
Bottled water may be a joke here in America, but in other places it's no laughing matter. That plastic can be the difference between being healthy, or having tapeworms and cholera crawling around in your stomach
Stupid idea here, genius idea there
This is a valid point, but generally when talking about bottled water vs. tap water, we are talking about first world countries, where we have standards for municipal water supply, namely the United States. This country consumes a ridiculous amount of bottled water, despite there being clean and safe drinking water on tap almost anywhere you go.
But it's obviously different in countries where they don't have regulations or any oversight on the water supply, if there even is a municipal water supply. For places like that, though, better than bottled water is something like in this video:
http://www.ted.com/talks/lang/eng/michael_pritchard_invents_a_water_filter.html