WooCommerce Visual Hook Guide by Genesis Framework - Click here to see WooCommerce Visual Hook if you are not using Genesis Framework.
This plugin for woocommerce lets you select the available shipping gateways for each individual product. You can select for eacht individual product the shipping gateway that will be used by checkout. If no selection is made, then the default shipping gateways are displayed. Download here
WooCommerce Product Archive Customiser allows you to customise WooCommerce product archives. Change the number of product columns and the number of products displayed per page. Download here