One recent March morning, I found myself in the Mexican town of Ojinaga sipping micheladas with Michelle Teague, owner of Marfa’s effortlessly cool ranchwear and housewares shop JM Dry Goods, and her business partner, glass- and soap-maker Ginger Griffice. Every six weeks or so, Teague and Griffice travel to OJ on buying trips. Teague scouts the small array of stores, filled with both the everyday and the bizarre, for items to boost JM Dry Goods’s border-town flavor. Griffice buys empty bottles of Topo Chico, a popular Mexican sparkling mineral water, at OJ’s Coca-Cola bottling plant, and they become the bases for the drinking glasses she sells at the store. By now, their trips follow an established pattern. Morning micheladas are an important part of the ritual.