Open Terminal and type in

defaults write com.apple.finder QLEnableXRayFolders 1

Then enter

Killall Finder

to restart the Finder. You should now be able to quicklook any folder that has files and see it in the folder preview.

UPDATE: If you ever want to disable it this feature, quit the Finder, then repeat the above Terminal command, but change the 1 to a 0.

Source: Mac OS X Hints

Enable See-Through QuickLook Folders is a post from: The Custom Mac

Here is a quick way to add a screen saver to your desktop. Go out and download Wallsaver (it free) and install it. Adding a screensaver to the desktop can be fun and entertaining, but in some cases in can be very helpful. For example if I use a clock wallpaper I can remove the time from the menu bar… Hmm…

Here are some screenshots of Wallsaver in action:

World Clock Screen Saver (click image to visit download page)

WarpFactor Screensaver

Screensavers on Your Mac’s Desktop is a post from: The Custom Mac