Changing the WooCommerce checkout fields display order is much simpler and more robust with the use of a ‘priority’ element in the field definition.
WooCommerce Tips
Send WordPress emails with SMTP
Deliver emails reliably by using SMTP. Use a tiny streamlined plugin to keep things fast.
Conditionally disable WooCommerce emails
Dynamically determine whether to send a WooCommerce email.
Use your domain email in Gmail
Send and receive your domain emails in your Gmail account. It’s easy to set up and Gmail is powerful and very easy to use.
Change WooCommerce category dropdown to static list
If you don’t like the empty ‘Filter by category’ dropdown then you can get the regular dropdown back.
Change hardcoded WooCommerce strings
Use a PO and MO file to change some hardcoded WooCommerce strings. The same concept works for other plugins and themes.