As most IT professionals know ye olde keyboard is a dirty, filthy germ ridden device; a device which is over brimming with nasty creatures just waiting to make you sick. In fact, the average keyboard is so nasty it is multiple times filthier than you average toilet! Worse still, most keyboards (unless specifically made to be water resistant) can not be disinfected without risking killing them. Personally, we have always used a UV light and a specialized vacuum cleaner to keep ours clean and bacteria free, but this is not an option for all people.