Costco Sale: Milk-Bone Large Dog Biscuit 15 lb $8.49

*UPDATE* 3/24/13 Costco has the Milk-Bone Large Dog Biscuit 15 lb on sale for $8.49 (after manufacturer’s instant rebate), now through April 14, 2012. That is $3 off Costco’s regular price of $11.49. The Milk-Bone Original dog snacks are crunchy, tasty treats that provides 12 vitamins and minerals. It also cleans teeth, freshens breath and helps to remove plaque and tartar build-up. ITEM #237786. While supplies last. This product…