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 Question Thank you! Oops! Related Contents 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 Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.