I was looking at this post from Huh989
http://hackerspace.lifehacker.com/you-can-add-sh… which lets you create shortcuts to just about anything in Android. Read it!
As Huh989 says -
"To get started, long-press Nova Launcher’s home screen and select Shortcuts. The process should be similar on other popular third-party launchers. Select the Activities option ..."
and select Settings from the list.
Another list opens up and one of the options is App Ops. WTF is App Ops? Well clicking it puts a shortcut to App Ops on your homescreen. Click the shortcut and a list of installed Apps appears with all their granted permissions. Clicking any one lets you turn on or off individual permissions for each app. Cool. Don't want Twitter to read your contacts? Turn it off! You can swipe sideways for more options - the Device list looks interesting. One thing I did is turn off the camera and audio record in Chrome but there's lots to look at.