At the salon, we stopped accepting credit cards because the fees were high. It's really inconvenient for clients to have to pay with either a cash or check, since most people pay with a card these days. Especially with new walk-in clients. What if they came in and expected to pay with a card, and didn't have a check or cash as an option to pay? I started using Square.
It's a little device you hook to your phone, you swipe their card, and the money goes into your bank account. They sign their signature with their finger on your phone, and you can either text or email them a receipt. It's great!!