Even during a normal winter with its typical viruses, overzealous cleaning would be expected. This year, your staff may be taking even more precautions to keep everything from doorknobs to POS touchscreens clean. Make sure they know the difference between cleaning, sanitizing and disinfecting – and which solutions are to be used for which surfaces. Wiping down a surface with the wrong solution can not only be ineffective, but it may also damage the surface being washed (as in the screens of tablets or other electronics). If you need a reference, the National Restaurant Association provides some guidance.