Great overview on new scripting features in OSX 10.9 Mavericks:
I have used this for few things:
This could come in useful in many situations.
Nice use of AppleScript to enhance Reminders: Enhancing Reminders with AppleScript and Macros.
open command in Terminal is very powerful.
You cant just open files and folders in Finder. You can type
to open a webpage in your default browser. Or
To open a Screen Sharing session to a remote computer.
Simple and (should have been obvious):
I have been using this in some cases but I did not know about the -t option.