mortuus
(mortuus)
7
if u travel or so it could be handy inspect bed, bathrooms etc for hidden filth…. 
even your own home u can be suprised how much crap is hidden…
u can also have fun in the dark shining up white stuff will be lit like a xmas tree
also its a fun thing since the wavelength is special but u gotta be careful with it not shine it in your eyes…