The folks that make Greenies - a special favorite of Smilin Dogs dogs - have reformulated their treat and are offering Free samples. Free is good.

http://www.greenies.com

From their website. We could go on about the science behind the new Greenies® dental chews forever - after all, it is our favorite topic. But we'd rather let you, or rather your dog, try it first-hand. Once your dog starts chewing, he or she will be sure to love every little teeth-cleaning, plaque-reducing bit… and you'll love your dog's fresher, more kissable breath.