Most Americans pay with plastic or cash when they visit the grocery store, buy their daily coffee, or fill up the gas tank. But a growing number of large companies are trying to change that.
Google, Starbucks and Wal-Mart are among the many firms that are eager to replace consumers’ wallets and stores’ cash registers, with smartphones and other mobile devices.
Recently, Intuit — the company that owns the personal finance site Mint and makes TurboTax and Quicken — has been selling a small attachment for smartphones called “Go Payment.” The device lets almost anyone, anywhere accept a credit card.
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