Costco Wholesale allows non-members to shop if they are using the Costco Cash Card during checkout.
Ask your friend with a Costco membership to buy several $10 gift cards or buy several $25 gift cards online
When non-members shop, just show the Costco Gift Card and pay remaining balance with cash
- Same discounts apply for non-members
- Same lenient return policy applies, you just need to keep your receipt
- Warehouse Locator
Update: You can use the card for liquor and pharmacy, as these do not require membership. Otherwise you will pay a surcharge or you have to purchase the membership to save the surcharge fee.
If you would like to join Costco, membership rates are located here.