Have you used Square yet? If not, you will! Square is an incredibly easy way to pay and get paid. With a Square Card Reader, you can turn your iPhone or Android device into a credit card machine. Previously the reader was only available through the Square website or other select retailers, but a new partnership with AT&T will make the Square Card Reader available in at least 1,000 AT&T stores.

The Reader will be available for $9.95 (with a $10 rebate for new users) and is super easy to use. Simply plug it into the headphone jack of an Apple iOS or Android device, download the app, and you're all set to accept credit cards. The Reader app is supported on most Apple iOS devices running 4.0 or higher and most Google Android devices running 2.1 or higher. There are other apps available through Square as well. Find out more about them here. Currently Square accepts Visa, Mastercard, Discover, and American Express, and charges a 2.75 percent fee per swipe. We'll cover some of the other amazing features of Square next week!