> How would you pay a plumber who came at short notice to unblock a drain? > Or, say, the fees paid for your child's karate class? I forgot a third development

> How would you pay a plumber who came at short notice to unblock a drain? > Or, say, the fees paid for your child's karate class? I forgot a third development, which is thanks to Stripe and other mobile-friendly payment processors. All you need is a smartphone, and they send you a mini card reader that plugs into your phone. I see them all the time at farmers markets and even paid for a tow truck using one once. > Or a 'cash' gift for a teenage nephew? Kids these days use Venmo or rarely paypal. I don't like them and my family uses Zelle to send money to each other from our different banks. Same when we do collections at work for an employee's retirement gift, the organizer just sent their mobile and asked everyone to send money through Zelle. People even pay their landlords with Zelle now.