Just swish this thermometer-like device inside a glass of water and you'll get instant drinkable water with no after-taste.
Having all been recent victims of the Norovirus, we know that sitting on the toilet for two days straight in a foreign country is no one's idea of fun. This solar-powered gadget should ensure safe travels abroad.
Editorial note: Whoa! You've found a super-old post here on BuzzFeed, from an earlier era of the site. It doesn't really represent where we are anymore, and may in fact be totally broken, but we're leaving it up as a part of our early history.