Costco executives announced that they had just lowered prices on three essential food items: Kirkland Signature Organic Peanut Butter, Kirkland Signature Chicken Stock, and Kirkland Signature ...
For example, Costco lowered the cost of Kirkland Signature organic peanut butter by $1.50 and chicken stock carrying its house brand by $1, said Millerchip, who joined the retailer in March from ...