Computer Zoom

Have you ever ran into a problem with reading text or want a close-up? Try pressing the control key while scrolling to zoom-in when using your mouse. To scroll down on a page, remove your finger from the control key and just scroll down.

Easy Volume Control

By default, pressing the F4 and F5 keys will make a click sound for each keypress that moves volume down or up, respectively. But holding down the shift key while pressing F4 or F5 suppresses the click. (You can also turn it off permanently in System Preferences, Sound, Sound Effects. By the way, you can also open Sound Preferences panel directly with Option-F5.)

Show only one window

Hold the option key while selection an application in the dock, and all other windows will be hidden automatically, it may not always work with Finder windows.

View all files in Stacks

To view all files from a stack hold the command button while clicking on the stack which will take you to the root folder where the files for that stack is stored.

Set exact volume levels

For those who like a perfect and exact volume level, this is for you. While holiding the shift and option key along with your designated volume key at the same time your volume will be broken up into smaller pieces.

Close Widgets

While in Dashboard, instead of clicking a + button at the bottom left corner to get the X for closing a widget. All you have to do is mouse over the widget you want to close and at the same time hold the alt/option key and the X will appear. This trick works with Tiger as well as Leopard.

Finder title bar trick

Did you know that you can click and drag the little folder icon in a Finder window’s title bar to copy/move the folder to another location? A secondary click on the title or the folder icon brings up a context menu listing the parent folders of the currently selected folder.