My first job was at a Staples office supply store in a town known for its tourism and glitz and glamour. Several times in my 15 months at that store, a German tourist would be seen wandering around the store, clearly lost. More than once they asked, in broken English, "where is the Milk?"

staple /ˈstāpəl/ plural noun: staples 1. a main or important element of something, especially of a diet. "bread, milk, and other staples"

Considering that the Office Supply store was called Staples, and the local grocery stores were Alpha Beta, Vons, and Ralphs, one could understand their confusion!