If you don’t like the empty ‘Filter by category’ dropdown then you can get the regular dropdown back.
Use a PO and MO file to change some hardcoded WooCommerce strings. The same concept works for other plugins and themes.
Setting up AJAX in WordPress requires a number of strings in the PHP and JS files to match. This generator gets you started without having to worry about these.
Revert to a standard loop on the home page, overriding the theme front-page.php template without editing it.
As the post is saved, set the featured image based on the post category.
A fun experiment to reduce W3C Validator warnings about the ‘type’ attribute of scripts and styles.