I wonder how the dryer sanitizes, especially if you use low heat. Those germs won't be killed unless the temp of the dryer is over 180F degrees.
One place/thing which they left off the list is your cell phone. Every meeting I've attended and every bar or restaurant I frequented, cell phones are plopped down on the table or bar. You also use your cell phone in many places, where you don't wash your hands prior to use. In the grocery, pushing those germy carts around, the phone rings, you answer.
I still think the faucet handles for hot and cold water in most public restrooms are potential spots for plenty of germs. You go to the bathroom, then, with dirty hands, you turn on the faucet. After cleaning the germs off your hands, you then do what? That's right, you turn off the water, touching something that every person who washed their dirty hands, has touched WITH their dirty, germ infested hands. I have some ideas for inventions to help save water and keep the water faucets touch free, and I'm not talking about those stupid motion sensors which aren't worth a crap (though that idea was a nice attempt).