What is the Value of a Second Major?

An Anonymous Student asks: "I am a senior in college, majoring in computer science. I only need two more CS classes to finnish a BS. But all along I have also been taking math classes and find that I am only three classes away from a finishing a BS in math as well. (We normally take nine classes a year) So Here is the question to people out in the real world: Is it worth it to get a second degree? Do employers or grad schools care about that stuff? or should I just take fun random stuff in my last year as an undergrad?"