Disable the Home Sharing functionality within iTunes 7.1 or above. After applying this command the option ‘Home Sharing’ will disappear in the navigation bar and the Advanced menu options.
In Mac OS X you can hide an application with the key combination cmd⌘ + H. That the application is hidden you can not see directly in the Dock. Using this command, hidden applications are displayed with a translucent icon in the Dock:
Specify what file format you want to use for your screenshots (shift⇧ + cmd⌘ + 3) under Mac OS X. Th default format is .png, there are a lot of additional file formats available: png, pdf, tiff, pict, jpg, bmp, gif, psd, sgi and tga.
By default, screenshots (cmd⌘ + shift⇧ + 3) are saved on your desktop. It is possible to change this default location of screenshots, use the following command:
When attempting to change a file extension in OS X Finder a warning dialog will appear. This could be annoying if you know what you’re exactly doing. Turn off the extension change dialog with the following command.
Mac OS X Finder does not show hidden (.dot) files and folders. Usually administrator will go in the Terminal and browses those hidden files and folders. This command will display all hidden files and folders.
Enable OS X Dashboard widgets on the desktop, with the F12 or F4 key. After applying the defaults write command activate Dashboard, click on the widget you want to move to your desktop, and while holding the mouse button down, click F12/F4 again.