Discover how Costco's Kirkland Signature has surpassed industry giants like Nike and Coca-Cola, making it a massive standalone brand. Learn about its impressive growth compared to competitors like Walmart's Great Value and the significance of household penetration in today's market. #KirklandSignatures #BrandPower #Nike #CocaCola #Walmart #RetailTrends #MarketShare #PrivateLabel #ConsumerBrands #Inflation