Hide 'successfully added to cart' message I use commerce checkout on a Drupal site but it is primarily an information site. So I effectively want to hide the cart from the user. 

This means that on addition of a product to the cart, I want to remove the Drupal message 'Product' added to your cart.

This can't just be hidden in CSS because we want other checkout messages to still be visible.
I'm pretty sure that's just set by a rule called "Display an Add to Cart message".

You should be able to delete/disable that rule in the UI and the message will disappear.