One of little known utilities in Mac OS X is Grab. This application can do what most of the other “professional” screenshot applications charge for, including selection, window, screen, and timed screenshots. With a few mouse clicks, you will be able to capture and export a screenshot to anywhere on your Mac. The advantage to using Grab over the built-in screen capture shortcuts in OS X is that you won’t clutter up your Desktop with images. Instead, Grab will open up a preview window where you can decide whether or not you want to save the image.