I don't wash my hands after I sneeze.  But on the other hand, unconsciously, I wash myself systematically hands by returning at home.

But if everybody wash his hands seven time a day, we'll soon be drinkwaterless.. And if we take too much care about that, we'll soon have to live in sterile rooms, won't we?

Yes, we need to promote basic hygiene.  Hand washing is necessary and essential, especially for food handlers at the restaurants.

 A study that  I read showed that more bacteria can be found on a computer keyboard than on a toilet seat . Therefore those people  who share computers should be aware of washing  their  hands regularly. Imagine the senario of eating your sandwich while you work !!