There is a recent article in Slashdot about the bacteria in shower curtains (http://science.slashdot.org/article.pl?sid=04/05/03/2014244&mode=thread&tid=134).
It reminds me of past stories about the horrible germs in phone headsets, computer keyboards and even in the kitchen. Those stories end with the conclusion that one should pay money to companies specializing in cleaning this stuff and/or buy new goods to replace the infected(?) stuff.
I wish those stories were accompanied by the percentage of bacteria which they share with human intestines, those bacteria which are really problematic.
Yet another instance of misguided make-work economics?