K.E.
Everyone needs alittle of exposure to germs so their immunesystems know how to fight things off, the more you are exposed to the stronger you are.
Kids get exposed to so much in school and if we put them in a plastic bubble now as babies we are weakening them for school. I would rather my kids get the common cold before school age so they are not sick in school and get the education they deserve.
I would relax a little, your dryer gets REALLY hot and disinfects itself, your washer gets bleach in it and hot water so again it disinfects itself.