You can save payment methods to your account for easy future use in two ways. Prior to shipping: 1) Login to your account, 2) Click your name, 3) Go to "Your Payment Methods," and 4) Click "Add a new box." Then you will be able to enter and save details of your payment methods. To save your payment methods automatically whenever you enter them while booking future shipments: 1) Login to your account, 2) Click your name, 3) Select "Account Home," 4) Select "Account Details," 4) Select "Edit," 5) Select " Save packages, addresses, and payment methods when I purchase." and 6) Click "Save."