What if a moratorium was added, by default, to all but the most important laws the first time they were passed? This could make it mandatory to review the worth of a law after it has been in effect for a while. If deemed worthwhile, being passed a second time could make it permanent. Certainly this would have huge downsides, but many benefits. It might decrease the amount of stale legislation and could allow the benefits of hindsight to be incorporated into the second version of laws deemworthy of re-passing. But, it would significantly increase Congress' workload, likely causing them to be unable to get as much done, and there's no guarantee that "bad" laws wouldn't be passed a second time while "good" laws would. Anyway, just a thought.