public function injectShipping()
 {
     $validator = Validator::make($data = Input::except('_token', 'commerceType'), Shipping::$rules);
     if ($validator->fails()) {
         return Redirect::back()->withErrors($validator)->withInput();
     }
     Shipping::create($data);
     $customer = Input::except('_token', 'magic');
     return View::make('carts.payment', compact('customer'));
 }