What's the saying simple but not easy?

One way that we can protect ourselves is by cultivating a new habit.

We have a sign at the door where people enter that says, "It's cold and flu season, please take off your shoes and wash your hands. Thanks, the management."

This is a message we've been delivering verbally to a greater or lesser degree. The sign makes our request overt and for everyone.

We can radically reduce the risk of infection by practicing these two simple things - removing our shoes and washing our hands first thing when we come in.