There was disturbing news reported in the Daily Mail today. Apparently mobile phones are home to more germs than a toilet seat.
So I'd suggest that every time your mobile rings, quickly pull on the marigolds, and only use the speakerphone – don't, whatever you do, put the phone to your ear. Once the call is finished, have a shower, or maybe two, and then sterilise the environment in which the call was made – preferably by setting fire to your house.
I enjoy these stories about how dirty various objects you wouldn't imagine to be unclean at all actually are. They are almost always compared to a toilet seat.
Office desks are a good example, as the Beeb reported more than two years ago. And lo and behold, the very same article mentions how dirty phones are.
So who are the researchers who get to break these 'stories' every so often? Is there a special 'Toilet seat comparison' department at an obscure ex-polytechnic sucking up public money to tell us that toilet seats aren't really that dirty after all, and that stuff we constantly touch actually carries more germs? Sounds like an easy job to me.