.blend file. * From operator search, find "Clear Useless Actions" * "Action library" actions are preserved by this operator. It targets actions without any F-Curves * By default, only actions which are single-user (where that user is a Fake user) will be targeted. This can be changed to have it target any "dangling" action that doesn't have any F-Curves * A save/reload cycle is still required to fully remove such Actions from the current file. Though at least now it's a simpler process to have these semi-automatically removed ;)