The email habits of Tim Cook, Bill Gates and 11 other highly successful people

When you receive almost 150 work emails every day, your inbox can quickly become the bane of your existence.

That suffering increases exponentially when you're the leader of a company.

So how do top execs like Bill Gates and Tim Cook manage their overwhelming inbox flux?

Disclosure: Jeff Bezos is an investor in Business Insider through hispersonal investment company Bezos Expeditions.