Drupal commerce - add product display title to cart Source: http://www.apsinfrastructure.co.uk/blog/drupal-commerce-cart-node-fields
enable views UI
edit 'Shopping cart form': /admin/structure/views/view/commerce_cart_form/edit
add relationship: (Line items referenced by commerce_line_items) Commerce Line item: Product
add relationship: 'Commerce Product: Referencing Content'
add field: Content: Title
If the extra fields don't show for unauthenticated users, cange the commer view for cart en checkout:
advanced/other/Query settings: check 'Disable SQL rewriting'