1. Overbuying: Purchasing more than needed due to Costco's bulk sizes.
2. Ignoring the Membership Benefits: Missing out on discounts and perks by not having a Costco membership.
3. Skipping the Perimeter: Not exploring the entire store, including the outer aisles with fresh produce and bakery items.
4. Ignoring Unit Prices: Failing to compare unit prices for cost-effective choices.
5. Underestimating the Food Court: Overlooking the affordable and delicious options at the Costco food court.
6. Neglecting the Return Policy: Not being aware of Costco's generous return policy.
7. Overlooking Online Options: Not exploring Costco's online offerings for convenience and additional deals.