With this Crystal Clear Utility, it's possible to create a translucent window for your Mac.

After browsing around the web, I found many sites that collect all nice and cool wallpapers. And among all of those, my favorite wallpaper pools are:

These wallpapers I got from InterfaceLift. There are much more of those cool wallpapers inside this site. Gotta go to check it.
Having many images do not guarantee that all of the images is of high quality. Sometimes it's really troublesome to get open those images one by one then get rid of those beasts.
Perhaps, it's time to use the Preview to its fullest. Preview can open a bunch of images at one breath.
And by following these steps, it will be very easy to spot and delete unwanted image.
Let me introduce you to this new feature of Mac, Automator. Automator will do repetitive tasks for you. However, here I will show you how Automator will work in sync with preview.
Let’s say you’ve this photo of fish..

Lately, most of the people use large monitor as their desktop. If you have monitor size of 1680×1050 pixels then if you print screen the entire screen, the file size will be much larger than after adjusting.
If you clever enough, you will make use your photoshop and shrink the file dimension. Therefore, if you want to print five screens then you have to repeat that five times. That will be troublesome, I think.
The easiest way is by adjusting your screen resolution inside Display Preference Pane. Using QuickSilver search for playpref and you will got application you want. Or you can go under System Preference.

The most powerful and useful feature Cropping Image. Actually everyone will know how to use this application. It's quite nice and easy to understand. In case you do not know, I will tell you.
Sometimes you need a particular part of your image, not the whole of your image. Here you need to crop your image.
Let me tell you the most useful feature in here, you can adjust your cropping area (usually rectangle) by moving its edge (similar to photoshop free transform selection). Nice right?

For most of people, image take a very good part in creating mood. Sometimes, someone want to take some screen shots from some images to use into some purposes (and I think I use some words that you spell it some).
Mac supplies you with the feature to taking screen shot, that its smoothness is the best. You can capture screen shots into the form of file or you can capture into clipboard for making further modification to your print screen.
I think you all know how to use this print screen thing works. Therefore, I will just give you some tricks of screen shot making.
Do you realize that, Mac uses Command-Option-3, Command-Option-4, Command-Option-Shift-3 and Command-Option-Shift-4 for screen shot taking? Those are very long keystrokes.
For people who often use this screen shot. I suggest you customize your shortcut. You just need to go to QuickSilver and use keyword keymouse and then customize your screen shot shortcut. For your reference, I only customize shortcut for save picture of screen as file to F13. You see, just one key, we can take picture of the entire desktop.