9 tricks for getting the best deals at Costco, from a former employee

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• Business Insider spoke to a former Costco employee to learn how to get the best deals at the store. 
• Robinson said price codes will tell you if the item has been discounted or not. 
• She also said to check the Costco app for coupons and to split bulk items with friends and family.

There are plenty of killer deals to find at Costco, but shopping smart is key to saving the most cash. 

Business Insider spoke to Tess Robison...