previously, you would edit the templates within standard_cart (or duplicate the theme and then modify/use the duplicate) because if you just use a sidebar hook to remove the sidebars in the cart (similar to above), it leaves a space where they were and doesn't adjust the width accordingly... this is a bug / design flaw that has existed for 5+ years. in their case, it's not removed - it's been hidden with CSS. in fact, looking at their browser code, they've seemingly must have d