Change the case of the selected iTunes track names to "sentence case": all lowercase with the initial letter uppercase. For example, "L'effet Que Tu Me Fais" could become "L'effet que tu me fais", and "Comme D'Habitude" becomes "Comme d'habitude". This is customary in many languages.
(Note: In order to launch this PowerPC-era script on an Intel machine, it must first be opened and then saved using AppleScript Editor, which is located in your /Applications/Utilities/ folder. More information is here.)
Apply selected CD's CD Text to its disc and track tags
Enter text for the selected tracks' Description tag
Set choice of various number tags of selected tracks incrementally
Re-associate batch of dead tracks with files from selected folder
Add or subtract a user-entered number from each selected track's Skip Count
Export files of tracks in two or more playlists to single folder