I guess this one is a tough one. I know I'm been searching the forum for the answer.
I know we need the user to have the option to log in, and in doing so doesn't need to enter billing OR shipping address; but if I am using option account registration, so the user can choose to register for a return visit, or just use the silent registration to checkout and place their order. I'm trying to streamline the checkout process enter all of the billing info together.