Hot corners allows you to designate some sort of event that should take place when you scroll your mouse into one of the four corners of your screen. For example, you can set it up so that when you place your mouse in the bottom left your computer will go to sleep. This is one of those features that is hard to live without once you get used to it. You can configure hot corners in “Expose and Spaces” under System Preferences.
Spaces almost goes hand in hand with hot corners. This feature allows you to split your desktop into multiple screens and is very useful for multitasking. It can be configured on the same screen as hot corners.
Change command button to control
For many new Mac users this can be the hardest thing to adjust to. For those of you struggling with this, we bring you good news – its very easy to remap the “control” button to function as the “command” button. Go to System Preferences » Keyboard & Mouse. On this screen select “Modifier Keys” which will allow you to remap the functionality of the most important keys on your keyboard, including “command” and “control”.
Although Safari probably doesn’t have as good of a rep as some other browsers, it still packs a lot of power. One of the coolest hidden features is the very useful debugger. In order to activate it type this command into your terminal:
defaults write com.apple.Safari IncludeDebugMenu YES
Although it has features like iPhoto, Mac doesn’t come with any advanced photography editing tools like Photoshop. The good thing is that there are a lot of free alternatives out there, the best being Gimp. Because it is open source there are even some hacks that make it function almost exactly like photoshop.