Auto-Rotate-Switch is an app that change your screen orientation quickly!

Switch the screen orientation by tapping the notification in the status bar.

This application is a free version.
The paid version adds the following features.
1) Hide all notification icons
2) No ads

icon creator: Asuka Nakayama

There are other apps -> https://market.android.com/developer?pub=in-trinity
YouTube -> http://www.youtube.com/user/intriandroid
Twitter -> http://twitter.com/#!/In_Trinity
Facebook -> http://on.fb.me/vDUVnp