Set The Screen Saver As The Wallpaper:
/System/Library/Frameworks/ScreenSaver.framework/Resources/ScreenSaverEngine.app/Contents/MacOS/ScreenSaverEngine -background
Show Hidden Files In Finder
defaults write com.apple.finder AppleShowAllFiles TRUE
Make Hidden Applications Icons Transparent
defaults write com.apple.Dock showhidden -bool YES
killall Dock
Increase Time Machine Backups
sudo defaults write /System/Library/LaunchDaemons/com.apple.backupd-auto StartInterval -int 1800
Disable local Time Machine Backups
sudo tmutil disablelocal
Enable Debug Menu In Safari
defaults write com.apple.Safari IncludeDebugMenu 1
defaults write com.apple.Safari WebKitDeveloperExtras -bool true
Enable The Path View In Finder
defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES
defaults write /Library/Preferences/com.apple.loginwindow DesktopPicture "/path/to/file.png"
Add A Message To The Login Window
sudo defaults write /Library/Preferences/com.apple.loginwindow LoginwindowText "Your Message"
defaults write com.apple.dock no-glass -boolean YES
killall Dock