Petco Animal Supplies Inc. has significantly cut return rates on products reviewed on its site by customers, the company reports. Products reviewed by customers on the site have a return rate that is 20% lower, on average, than for products without reviews. And the return rate continues to decline as a product gains more reviews, with return rates on products having 50 or more reviews 65% lower, on average, than for products with no reviews, Petco reports. Petco implemented the Ratings & Reviews application from vendor Bazaarvoice in October 2005.