MainMenu: Convenient Access To System Tools
MainMenu from Santa Software is just one of those apps that will make your life easier. It sits up in the menu bar and allows quick access to many of the essential tasks, tools and scripts that keep your mac running at its best.

Rebuilding your Spotlight library for faster searching, repairing permissions, cleaning caches to improve application performance, and even more advanced settings — such as enabling and disabling the Dashboard — are no more than two clicks away.
MainMenu has a clean and easy to understand interface, achieved by splitting up tasks into categories. It is very lightweight and when not in use it sits only between 0% and 0.1% of the relatively old G4 processor inside the iBook I’m using to write this post.

One of the best features of MainMenu is that you can set it up to run a whole bunch of tasks at once, using the “Execute Batch Tasks” item. Growl integration means you will be notified when a task is completed without having to keep an eye on it.
MainMenu is a Universal binary, and is free (at least for the moment). Grab it here.

[...] Originally from MacApper by Nick Cotton reBlogged by Simon Menke on Mar 16, 2007, 2:00PM [...]
I have this and Onyx installed. Trying to see which one I like better or works better for me. Supposedly Main Menu doesn not work if you have upgraded to 10.4.9
I think Main Menu is the best general maintenance program available. It just seems to have everything under one roof and the individual tasks are logically grouped and easy to get to.
MainMenu is cool but not useful enough for me to keep it in the menubar.
@michael, i have used both b4 but settled on onyx simply because mainmenu runs all the time and i dont want to set resources/memory aside for an app that i “occasionally” use. Besides onyx can do more .