To enable this, create a smart collection named All Products and set the condition to 'Product price is greater than 0'. You can create a collection through the 'Collections' menu in Shopify admin. Or you can turn this section off through theme settings.
"Mockingbird Yeah" Dumb and Dumber shirt. The perfect attire for cruising around in your '84 sheep dog... reciting Dumb and Dumber quotes of course.