It’s not normally “our deal” to post any medically-related savings or promos, but we found a “secret” we just couldn’t keep to ourselves. Anyone can use Costco‘s Pharmacy with no membership required. We called the corporate office and it’s true. You can flash your prescription to the checker at the entrance (or just tell them you’re going to the pharmacy) and you’re in. Note: Without a Costco membership, you can only use the pharmacy or buy liquor, if the store carries any — no other purchases allowed. Like most warehouse stores, Costco offers excellent deals on prescription prices. They also accept most insurance plans.