Look up new membership deals. Costco often offers new membership deals, such as a free year of membership when you sign up for a new credit card.
Pick up your prescriptions at discounted rates. Costco offers a pharmacy membership prescription program that can help you save up to 85% on prescriptions.
Shop the sales. Costco offers sales throughout the year, so be sure to check the Costco website or your local Costco warehouse for the latest deals.