I Have Been Shopping At Costco For Years—Don't Make These 13 Mistakes
Avoid these mistakes to maximize your membership. Im looking at you, in-housebakery section. Not upgrading your membership. Credit:jetcityimage/Getty Images This incentive means Executive-level Costco shoppers can earn up to $1,250 each year. Forgetting to fill up your tank. After youve filled your cart, be sure to fill your tank. Overlooking Kirkland brand products. A 2-liter bottle runs about .47/ounce comparative to premium olive oils that can get up to $2/ounce....