1. Apple Logo

Shortcut : Option-Shift-K

Note. One of the symbols that can be drawn with simple keystroke, the famous Apple logo. Sorry, but I can’t resist to put this as the first shortcut.

2. Zero Brightness

Shortcut : Control-Shift-Eject

Note. Instantly turn your display off without logging out from the system.

3. Adjust Volume Bar

Shortcut : Option-Shift-F4 / Option-Shift-F5

Note. Increase/decrease your volume bar by a quarter each time it’s invoked. This is particularly useful for fine tuning Mac with bombastic sound system.

4. Double Buffer

Shortcut : Control-K (Kill) and Control-Y (Yank)

Note. Like, Cut and Paste, combination of Kill and Yank can help you organize your text easily. Cut followed by Kill grants you double text buffer.

5. Home and End

Shortcut : Control-A (Home) and Control-E (End)

Note. This is pretty much the substitution for Windows button HOME and END. PressingCommand-← or Command-→ performs the same action.

6. Delete and Backspace

Shortcut : Control-D (Delete) and Control-H (Backspace)

Note. In Windows, we’ve got two buttons for this : DEL and BACKSPACE. You can use Fn-Delete to perform forward deletion while the button Delete acts as Backspace.

7. Related Messages

Shortcut : Command-Shift-K

Note. Selects all related messages in the same mailbox.

8. Open Address in New Tab

Shortcut : Command-Enter

Note. While highlighting address bar, pressing this shortcut will bring up new tab of that selected address.

9. Google Search Box

Shortcut : Command-Option-F

Note. Quickly jumps your cursor to Google Search Box. Saving your mouse click as well as your precious ticks of seconds.

X. Zoom

Shortcut : Command-Option-[+] (Zoom In) or Command-Option-[-] (Zoom Out)

Note. Zoom in/out your display; making tiny objects looks huge.