The current process for emailing a shopping cart parts list is not intuitive for end users. Users have to click the "Export" button before they can access the "Email" option, which is an unintuitive extra click.
To improve the user experience, I recommend adding a dedicated "Email" button directly within the shopping cart. This would make the email functionality more discoverable and accessible, allowing users to quickly and easily share the cart contents via email without having to navigate through additional steps.