When I was 9, I auditioned for a role in my summer camp's production of "Winnie the Pooh." I couldn't wait for the Head Counselor to post the casting results on the mess hall wall. Would I be playing Christopher Robbin? (It was an all-girl camp.) Or maybe even, dare I hope, Pooh himself?

What seemed like days later, the list was finally tacked up and while my name did appear, turned out I wasn't to play either of those lead characters. Instead I was cast as the sun. The freaking SUN. What?

When I mustered the guts to ask why they'd thought I was suited to the part, they told me it was because my smile could light up a room -- just like the sun lights up the world. Gimme a break.

I mean, sure it's true, I was blessed with nice teeth. They've always been super-white and I never needed braces (though I thought retainers were so cool that I wore a bent paper clip in my mouth throughout most of the fourth grade). But, because of them I was relegated to playing the sun? Clearly I've never gotten over it.

Now umpteen years later I find myself longing to be cast in that part again -- minus the giant yellow orb costume. Why? After seeing pictures of myself over the past several months, I've realized that my once pearly whites are significantly less so. Don't know why. I don't drink red wine or coffee or even soda (I've been Diet Coke free for three years and two days -- but who's counting?). So, what gives?

I asked my dentist and he said it was just normal "wear and tear" on my teeth, and would I like to have them whitened? Um. Sure. And, I'd also like a Malibu beach house, but as a single mother of two who gets zero child support I'm not about to indulge on such a thing.

Hmm. Other options? Well, I could head to the mall and lie there with a blue light emanating from my mouth as Cinnabon-clutching teens snicker? I'd rather have dingy teeth, thanks.

But if the mall's too unappealing and the pro whitening's too expensive, what's left? Do those drugstore whiteners really work?

Yes. According to Dr. Michael Apa, a partner in the Rosenthal/Apa Group on Manhattan's Upper East Side where he works exclusively on aesthetic and restorative dentistry. He suggests that his patients use a whitening toothpaste daily and also recommends using Crest Weekly Clean Intensive Cleaning Paste, $14.99, saying that "[It] is a good product that has heavy silica ingredients to brush stains away."

Well, OK then, I'm willing to try anything once. Will let you know how it goes -- and also if I get mistaken for the sun again anytime soon.

Do you whiten your teeth? What do you use?