Mailbag: Early Medicare, Tightwads, New Cars & Divorce At Retirement

What happens when you retire before Medicare eligibility? What do you do if your significant other is a tightwad when he doesn't really need to be? Is it OK to buy a brand new car on credit right at retirement? What should you do if you're getting an unexpected divorce right before retirement? We'll answer all those questions and more on this week's "Mailbag" edition of Smart Money Questions.