No Cash, No Checks, No Problem Peer-to-peer payment apps are one of the newest ways to send money. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content The Latte Lie and Other Myths Do you know these three personal finance sayings? How Big is Money? Learn a little about worldwide currency in this fun infographic Doubling Your Money This calculator demonstrates the power of compound interest.