We told you about it 3 days ago, before anyone else did here. Its author TualatriX has written an in depth review of Ubuntu Tweak's capabilities. It has taken him 2 months to code Ubuntu Tweak.
Here is his take on Package Cleaner:
another new feature has been introduced to Ubuntu Tweak after I finished the GUI design. That’s the “Package Cleaner”.
After a long time of using Ubuntu, after many times of installing and updating, I think there’s a lot of packages that are useless in your Ubuntu, it is called the “Garbage Package”. So is the package cache.
Now you can clean up them easily through Ubuntu Tweak!
If you’re a skilled user of Ubuntu, you must know the opertions can be done by run “sudo apt-get autoremove” or “sudo apt-get clean” in termianl. But Ubuntu Tweak can do it better, you can remove the packages(or cache) in your mind.
For example, you want to remove most of the unneeded packages, but want to remain the old kernels. So you can just select what you want to remove, and click “clear”. If you do with “apt-get autoremove”, all the packages will be removed by once.
Following pictures show how you can clean up packages and cache by Ubuntu Tweak.
Ubuntu Tweak will automately list the unneeded packages(or cache), you can clean up of them by selecting what you want, or just select all.
The pictures show the old kernel can be removed.
The same to clean cache, it will free your disk space.
I hope this feature will help you to manage your Ubuntu with a better solution.
You can read his review here: http://ubuntu-tweak.com/2008/10/09/ubuntu-tweak-040-released.html
If you are use Ubuntu Tweak through its repository and you’ve upgraded to Ubuntu 8.10, please changed the sources to Intrepid:
deb http://ppa.launchpad.net/tualatrix/ubuntu intrepid main deb-src http://ppa.launchpad.net/tualatrix/ubuntu intrepid mainIf you still using Ubuntu 8.04 Hardy, the old source is still be used.
deb http://ppa.launchpad.net/tualatrix/ubuntu hardy main deb-src http://ppa.launchpad.net/tualatrix/ubuntu hardy mainOr you want to go and download it from here: downloads