I bought it from
www.dog.com. They guarantee that they have the lowest price online. If you find a lower price online they will match it. I think it is now 21.99 but when I bought it, I also got 10% off and free shipping. I'm a frequent shopper at dog.com so I receive special deals via email. I think you can be added to their mailing list on their website. Their warehouse is also located near my parents so sometimes I place "pick up" orders if I don't have a free shipping offer.