Email addresses

A friend of mine remarked that he loved the fact that he had 5 email addresses. I began to wonder what the need was. Well one was for receiving junk mail like those pesky newsletters and discount coupons. Another was the one he signed up on a dating site. The third was his regular correspondence. The fourth was one that his company gave him. The fifth was the one he used so he could sign up on social networking sites like myspace.com