Another to-do item in the list: weed out multiple plug-ins in favor of this one.
I’d recommend WordPress SEO by Yoast as a must have plugin. On more recent site developments, I’ve tried to stop using as many plugins which included cutting out plugins like All-In-One SEO Pack in favor of storing meta tags and custom titles hard coded into custom fields.
With all of the WordPress SEO plugin’s useful features covering many aspects of SEO, you really can’t afford not to use it. I plan on switching to the WordPress SEO plugin on Theme Lab in the future.