As of 2015, some of the products from Costco stores can be purchased online through the retailer's website. Customers can find the available product categories on the home page.
Customers shopping online at Costco can also find merchandise by using the search feature. Items being purchased should be added to the cart. The contents of the shopping cart can be seen by selecting the "view cart" icon.
Once the customer is done shopping, he can proceed to the checkout. Costco does require new customers to create a free online account and existing customers are required to login. Costco does not ship to P.O. boxes or internationally.