a no brainer. Install and enjoy

A perfectly designed and well-behaved plugin that does what it says, with minimum fuss and effort. It works like a charm.
WP optimisation is not just about database optimisation, but good backend-housekeeping is certainly a key element of any serious and successful optimisation strategy. This plugin will get you most of the way, with no real work on your part.
I can thoroughly recommend it to all serious WP admins! Grab it!
Great job and thanks for making it available to the WP community!