You can also drag and drop to the Launcher.

There is a keyboard shortcut overlay that appears when you press the Super
(Windows) key.

Here is a handy hot key and mouse short cut page:
askubuntu.com/.../what-are-unitys-keyboard-and-mouse-shortcut\


Complete Guide: http://ubuntuguide.org/wiki/Ubuntu:Precise

www.webupd8.org/.../...tcut-hints-overlay-and.html

Ctrl+Alt+T opens the terminal.

Note: I am not a Unity user. It is KDE for me! But I try Unity
periodically. I still cannot get used to its limitations.