If you have long expressions for your shipping methods, with delivery-date information added for example, you may prefer to display the Shipping Method in two lines rather than one on your Checkout Confirmation page. This recipe shows you how to pinpoint where formatting is done, and how to modify the look to suit your needs.
Your screen will display your Shipping Method, here Flat Rate (Best way), as in the following screenshot:
$shipping = array('id' => $shipping, 'title' => (($free_shipping == true) ? $quote[0]['methods'] [0]['title'] : $quote[0]['module'] ....