Currently I am using the below scenario for returning customers and new customers. The address form is beneath. So if you are a new customer we require email and phone, but if you are returning then you can login.
I was wondering if there are any proven methods to help the visitor more clearly. What I was contemplating was something closer to having two buttons, NEW CUSTOMER, RETURNING CUSTOMER, and then showing the correct fields onclick. Anyone have any suggestions of experience in such matters?