Like I already wrote in the description of Task Till Dawn, I use it mainly to automatically update my Podcasts. iTunes has the bad habit of setting all Podcasts inactive which have not been seen or heard for a while.
Whoever also is disturbed by this behaviour should have a look at Doug's AppleScripts for iTunes. There are a lot of useful scripts, and also one which updates all Podcasts and sets the "inactive" ones back to being active again. Really helpful, as I think. Especially, because iTunes doesn't yet provide a possibility to disable the automatic deactivation of Podcasts.
