BehindTheMedspeak: BriteSmile™ Pen — Liquid Paper™ for your teeth

Look and feel your best even if lunch included red wine and espresso.

"Easy-to-use click-pen applicator delivers teeth whitening without any mess."

You get a two-month supply of powerful tooth-whitening touch-ups in one stylish, discreet purse- or pocket-size applicator.

"Perfect for fast whitening for an important day or meeting!"

$29.95 here.

A bit rich for your blood?

Not to worry: a 3-pack is only $62.95.

That's less than $21 apiece, almost 33% less than the price of a single applicator.

You're still not convinced it's worth the money?

All right, all right.

Buy a party pack here: you get 9 pens for only $119.99 — that's $13.33 apiece.

I mean, you drop that much at Starbucks every week.

Which, though it may rev you up, won't do a whole lot for your teeth.

Come on, already: get a bunch of your girlfriends together, everybody throw in their money and take the plunge.

If I still haven't convinced you, well, I guess you'll just have to stay with old reliable:

$2 here.

The choice is yours.

FunFact: Bette Nesmith Graham, the single mother and secretary who invented Liquid Paper™, originally called it "Mistake Out."

FunFact #2 about Bette Nesmith Graham: She was the mother of Michael Nesmith of "The Monkees."