I'm developing with wp_debug turned on. I found Infinite SEO has a small bug which annoys me when I'm in the wp-admin.
wp_debug throws me a notice: Strict Standards. Only variables should pass by reference.
It is in line 245 in wpmu-dev-seo/wds-files/wds-core/admin/wds-core-admin.php
with my code below to get rid of the strict standards problem.
$array_keys_sections = array_keys($sections);