Force WordPress to use HTTPS Only

Having trouble getting your WordPress site to use HTTPS only? Me too! Simply changing the WordPress URL and Site URL in Settings > General such that the values are prefixed with https:// will not really move you over to HTTPS only.

Easier option. Install WP Force SSL by WebFactory Ltd. It will take you all of 2 minutes, if that. Once installed through Plugins > Add New. Enable both of these options and your done.