You can save box and case dimensions and weights 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 Boxes," and 4) Click "Add a new box." Then you will be able to enter and save details about your box or case. To save your boxes and cases 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."