Change update frequency of App Store in Mountain Lion? The Mac App Store on Mac OS X (10.8.3) notifies me frequently about new app updates by showing a little popup. How can I change the update frequency or the way Mac OS X notifies me?
Launch Terminal, found in /Applications/Utilities/ and enter the following command:

sudo defaults write /Library/Preferences/com.apple.SoftwareUpdate ScheduleFrequency 3


Set the number at the end to the number in days between checking for available software updates, the example uses 3 days