I've been known to coupon a time or two, and one thing that I can get for free or close to free is Colgate toothpaste. If Wal-Mart has it on sale for $1.00, I often have coupons for -$0.75 or -$1.00 off. We often have four or five tubes of Colgate on hand for this reason.
The problem is that while I'm cavity-free, Colgate does nothing for the staining.
Enter Crest 3D White Vivid
We received a free sample of this new Crest product in the mail a few weeks ago. I'm not one for gimmicks, but it actually did wonders for the stains on my teeth. It worked so well that we actually forgoed our Colgate and forked over the nearly $4 a tube for this stuff. It worked that well. Perhaps we'll strike a compromise: Crest after coffee, Colgate before bed.