I wipe down the screen with a damp cloth daily. I don't disinfect my phone. Nobody else touches my iPhone.
Lens wipes at least once a day if not more depending on the days activities.
And I suppose you don't touch money, gas pumps, or doorknobs?
I clean my phone with straight alcohol whenever I get the chance. I clean it constantly. Whatever I can find.
I don't see why you guys are afraid of getting chemicals on your phone. As long as its not getting inside of the phone and it's not acid then it should be fine...