I have heard a lot about Ubuntu-Tweak and how it is great for power users, but I don't know how to install it.
How do I do that?
Installing Ubuntu-Tweak is rather simple and easy. Follow these simple steps, and you will have Ubuntu-Tweak installed, and be on your way to tweaking Ubuntu to your liking.
For 12.10 and Earlier:
To install follow the following steps:
Open the terminal. Add the required repository with the command:
Update the software list with the command:
Finally, install Ubuntu Teak with the command:
After that, open dash and type "ubuntu tweak".
For Ubuntu 11.10 still there isn't a stable version but you can download the alpha version form here https://launchpad.net/~tualatrix/+archive/next.
You have to add the ppa and install the software, using this terminal command: