title: Where are stored the settings of each shipping method in WooCommerce?
body: <p>I have two separate e-commerce platforms.</p>
  
  <ol>
  <li>A large, old system that drives all the orders and dispatch.</li>
  <li>An online store powered by WordPress / WooCommerce.</li>
  </ol>
  
  <p>So far, we've managed to automate a lot of simple things like pulling orders from WP, and pushing updated stock levels to it.</p>
  
  <p>One thing I cannot fathom, however, is when I create free_shipping method and set a minimum spend. Where is that stored in the DB?</p>