1. View of Basic System Information(Distribution, Kernel, CPU, Memory, etc.)
2. GNOME Session Control
3. Auto Start Program Control
4. Show/Hide and Change Splash screen
5. Show/Hide desktop icons or Mounted Volumes
6. Show/Hide/Rename Computer, Home, Trash icon or Network icon
7. Tweak Metacity Window Manager Style and Behavior
8. Compiz Fusion settings, Screen Edge Settings, Window Effects Settings, Menu Effect Settins
9. GNOME Panel Settings
10. Nautilus Settings
11. Advanced Power Management Settings
12. System Security Settings
You can download Ubuntu Tweak from following link:
Download Ubuntu Tweak