Cool technology....

....automaker Volvo has come out with a "lifepaint" that apparently more or less glows in the dark, can be sprayed on bicycle or even clothing or helmet, is invisible in normal light, and....washes off readily.

One little improvement would be great; make it oil based and permanent.  Oh, wait, looking at the bottom....here we go.   Given my nasty sheet metal allergy, I might have to look into it.