Notorious for its oversized portions and dollar­fifty hot dog combo, Costco is the apex of consumerism. From the days spent being toted around in a shopping cart to when I was finally tall enough to reach lofty sample trays, Costco has endured a steady presence throughout my life. As a veteran Costco shopper, I navigate the aisles of foodstuffs, thrusting the majority of my weight upon a generously filled shopping cart whose enormity juxtaposes my small frame. Over time, I’ve developed a habit of observing fellow patrons tote their carts piled with frozen burritos, cheese puffs, tubs of ice cream, and weight­loss supplements. Perusing the aisles gave me time to ponder. Who needs three pounds of sour cream? Was cultured yogurt any more well­mannered than its uncultured counterpart? Costco gave birth to my unfettered curiosity.

How does the writer continue the story she set up in the introduction?