
Corrosion—the eating away of metal that occurs when the metal is exposed to oxygen and moisture—is the cause of millions upon millions of repair jobs every year. One authority has estimated that it costs the people in the United States alone about eight billion dollars annually. The corrosion of things you own contributes to the bill.
Obviously, if you don't want to keep on shelling out money and making repairs (which are often difficult or impossible), you should try to prevent the metals in your home, automobile, boat, etc. from corroding. Here, quickly, are some of the things you can do: