Being Germ Free

I am one of those people who carry around hand sanitizers and put someone every time I touch any type of door knobs and I notice that I a not the only one. When did we become so paranoid and develop this OCD of thinking everything is germ ridden. How many people are actually washing their hands and doing everything to make sure that they do their part on keeping clean? This is one habit that is not going away, even though a place may look clean, you just never know.