Ask yourself one question before buying something like Miles Kimball's Stain Detector Light: do you really want to see the secret kingdom of UV-luminescent stains?
Consider X-Ray vision, for example. It would be just fine until you realize you can't unsee all the semi-digested food and bowel-navigating turds. It would color your perception of the entire world. And this is basically the same deal, only for urine-stained hotel sheets and other, even less savory encrustations.
The light is $7 and requires 2 AA batteries.
Product Page [Miles Kimball]
