Redditor TinyLebowski shares an AppleScript that, once configured and run, will allow you to switch to another iTunes account in 2 seconds, without typing anything. This is particularly useful for people like me who own several iTunes accounts (especially for App Store and iTunes movie releases) and think iTunes should have an option to “fast switch” between accounts — even on different international Stores. This AppleScript works as advertised and, if you are switching to an international store, you’ll just have to hit the Ok button. If the Store is the same, you won’t have to hit anything and the login process will be automatic.
Beware, though: your Apple ID and password are stored in plain text inside the script. Of course this is meant to be saved on your local machine, assuming only you have access to that. However, saving the script as an “application” bundle might provide an additional security measure (that is, someone will have to “show package contents” and navigate through folders to see the main script).
I love it. Check out the full AppleScript here.