Currently running an aMember cart in combination with WordPress, integrating our own WP theme with the aMember cart. We have no use for the columns, '#' and 'tax' provided. Is there a safe way to remove these fields without breaking the cart? At this stage we're interested in improving the mobile experience and having these fields removed will declutter the interface.
You can create your custom theme http://www.amember.com/docs/Themes_and_Templates and modify template cart/_basket.phtml as you want (remove any column or completely change layout).