We all know money buys luxuries like sports cars and Manolo Blahniks, necessities like groceries, and intangibles like preferential treatment. (When was the last time Donald Trump waited in line for ...

Often, grocers think about big ways to cut costs—cutting labor hours, for instance. But they should also be thinking of their stores’ “leaky faucet” problems, too. In homes, a leaky faucet might seem ...