Costco is now offering free two day free delivery on dry goods like canned foods, sodas, bathroom supplies and cereals if you spend $75 or more. Customers can order online. They do not offer deliveries on the weekends. The service is called CostcoGrocery and is meant to compare to Amazon Prime and their two-day delivery service. Try it Here.
The store is also offering same-day delivery for orders of $35 or more with an additional 10% service fee added on. This is useful for foods that will spoil.
You'll miss out on the middle school lunch of course if you use the CostcoGrocery serrvice.