Building off the Dish, E.D. Kain considers sunset clauses for entire branches of government:
Too often our government is a self-serving, bloated mega-institution incapable of ever cutting off any of its outgrown limbs. Making more if it temporary or at least writing in the possibility of temporariness when constructing it would at the very least give these big government institutions a reason to try to remain relevant.
Of course, the downside would be an even more concerted effort to self-preserve, but at least there would be a conversation going on about whether survival was in the best interests of the nation at large.