Even before all the health scares started I consistently cleaned my iPhone and my iPad. You might be surprised how many germs they can accumulate. I am not a germafobe, but it does not hurt to clean your iOS devices from time to time. This article describes a couple of different ways to clean your iPhone and some things not to use on it. However, a while back I came across this product which works very well. Been using if on my glasses and iOS devices for over a year without any issues.