Costco is offering instant savings for certain organic items once again. It will be valid from Monday 08/04/14 to Sunday 08/31/14. These instant savings are only valid at Bay Area, Northern California and Northern Nevada Costco warehouses. Other terms: Offers good while supplies last No rain checks will be available Must be a current Costco member … Continue reading Costco Organic Savings for Northern CA & Northern NV 08/04/14 to 08/31/14