http://www.maintain.se/cocktail

Cocktail is a general purpose utility for OS X that lets you clean, repair and optimize your Mac. It is a powerful digital toolset that helps hundreds of thousands of Mac users around the world get the most out of their computers every day.

The application serves up a perfect mix of maintenance tools and tweaks, all accessible through a clean and easy to use interface. Cocktail’s features are arranged into five categories that helps you manage various aspects of your computer. It also comes with an automatic Pilot mode that allows you to simply press a button and relax, knowing that Cocktail will take care of the rest.

When unregistered, Cocktail (Mountain Lion Edition) for OS X 10.8, Cocktail (Lion Edition) for OS X 10.7 and Cocktail (Snow Leopard Edition) for OS X 10.6 runs in demo mode and will expire after the tenth launch. Cocktail (Leopard Edition) for OS X 10.5 is distributed as freeware and does not require a license.