Wondering what the 'must have' WP plugins are for SEO related features and performance. Currently, I use Ithemes Security and Custom Fields on every project along with some others occasionally depending on features client wants. For SEO though, is Yoast as good as everyone claims, if you use every feature? Any other SEO type plugins I should look into? I try to keep my plugins to minimum on WP sites for obvious reasons. Less to update. Less potential security and compatibility problems, faster loading pages, etc.