Many people rely on credit or debit cards to make purchases. But have you ever wondered whether it's better to tap or insert your card? Both methods use a one-time encrypted code for each ...

How many times have you been standing in front of the SmarTrip card machine and someone new to the D.C. area — or a tourist — looks at you pleading for help?

Make sure to take out your card and tap it, as the reader does not read cards through your wallet. You can also pay by using your Apple Wallet on your phone or Apple Watch.

The payment method allows users to tap their payment card against their mobile phone and enter their Pin to make a payment, in the same way payments are made in shops.

Square’s $399 Handheld accepts tap-to-pay at your table Square says the new portable card reader is ‘one of the thinnest and lightest’ POS devices on the market.