Sure, John.
– Make sure you hit the button within WordPress CloudFlare plugin “Apply Default Settings” which will create 2 Page rules to bypass cache on …/wp-admin and …/wp-login.php URLs and also disable performance on these two URLs.
– If you don’t use SSL, please make sure your CloudFlare Crypto SSL settings set to “Flexible” or “Off”.
– If you do use SSL and your origin supports SSL then switch CloudFlare Crypto SSL settings to “Full”.
– If you use SSL make sure you fix Mixed content and also using relative paths for all your URLs, media files etc. There are several plugin that do it. I use “Really Simple SSL” WP plugin to fix mixed content and it works for my website.