Shoppers who enter a drugstore to pick up a prescription will make a beeline for that counter, so it's usually easy to spot from the front of the store. At the checkout counter, a single line of shoppers feeding into several registers is fairest. But shoppers are often put off by the look of that one long line, especially if it blocks other parts of the store.
Shoppers like to touch and try merchandise before they buy it.
As a result, even discount stores ought to figure out a way to let customers test cosmetics without opening packages. Gas stations could attract female buyers by offering clean, beautifully-kept rest rooms. This amenity often is more attractive to busy women than saving a few cents on gas. Older shoppers like to read labels, but tiny print often makes it difficult. Shoppers love this, and it's easier for store employees.