I really enjoy the availability of “Active Corners” . Active Corners is the ability to use each corner of the screen to perform and action. You can control the settings for Active Corners in System Preferences -> Expose and Spaces on the Expose tab. (as seen in the picture below) You can ask any of the 4 corners of the display to launch any of the following.

All Windows
Application Windows
Desktop
Dashboard
Start Screen Saver
Disable Screen Saver
Sleep Display

Over at The Mac Tipper Blog they have posted a great tip for using your keyboard to cycle through all of the open windows. The short cut is called “Move focus to the active window or next window” in the Keyboard Shortcuts area of the Keyboard & Mouse System Preference Pane. According to the post the default is “Control + F4″ but, if you are like me and on a macbook and just hit the ”Control +F4″ all it does is change …

With Spaces, Mac users can finally enjoy what Linux users have had for years: virtual desktops. However, Leopards implementation has a neat trick that I have yet to see in any Linux distro. You can now perform “window dragging” between the desktops without having to use the multi-pane view (ie. 4 screen view).
Simply click on a window as though you were going to drag it. While continuing to hold down the mouse button, press control+<an arrow key> to move that …

If you are anything like me, when you print you want to look at all the options that may or may not have been set. Well in Leopard I have gotten very frustrated by having to hit the blue arrow in the print dialog box every time I want to see the settings. My problem have been solved by a real simple Terminal hack. Per the nice folks over at Mactips.org all you need to do is type: 

defaults write -g …

Our friends over at the Mactipper.com have put together a quick tutorial on how to get your mac to just join the best open Wi-fi Available.Go to the network system preference pane.Open the Airport section by changing the “Show:” menu to “AirPort”.Click on the “Options…” button in the lower left hand corner.Change the menu at the top of the Options window to “Automatically join an open network”.Hit “OK”. Then, click on “Apply Now” in the lower right hand corner.If you want to see him walkthrough this in a screen cast jump over to his Mactipper.com and check it out.

Scott Rouse, over at the My First Mac web site, has put together a really nice run down of the System Prefrenece Pane.

Have you ever installed a Preference Pane Application and wanted to remove it? What is a Preference Pane Application? It is an app that when installed is found on the bottom of the System Preferences application. If you you the app “RCDefaultApps” that we spoke about before, This is such an application. See the tutorial below.

I was not able to write anything better than the web site states its self. Here is the excerpt from the home page.

RCDefaultApp is a Mac OS X 10.2 or higher preference pane that allows a user to set the default application used for various URL schemes, file extensions, file types, MIME types, and Uniform Type Identifiers (or UTIs; MacOS 10.4 only). MacOS X uses the extension and file type settings to choose the application when opening a file in …

The trick to being a fast and productive on a Mac is the keyboard short cuts. This is something worth checking out, go to the Systems Preferences pane in the apple menu. Select the keyboard and mouse area, them to the Keyboard Shortcuts tab. You will find a list of the shortcuts available to you. You should look this list over. Below I have given a short list of shortcuts proven to help keep your hands off the keyboard.