[url]http://www.ohmygoditburns.com/[/url]
In a nutshell: A couple people who experiemented with Vladimir vodka, which is the cheapest vodka. The vodka tastes like crap so they decided to filter it out with a brita water filter. After the 4th filtration, they got the vodka to taste smooth and as good as the more expensive vodka.
Now I want to know if doing this will have any bad effects? Any alcohol experts? :D