We've got a lot of 20+ year old code in production, a lot written late at night in a crunch. Much of it's ugly, non-optimal and screams to be ripped out and rep

We've got a lot of 20+ year old code in production, a lot written late at night in a crunch. Much of it's ugly, non-optimal and screams to be ripped out and replaced. But it is working, in areas that see little change and are not overly performance sensitive. So we only do something with it if we need larger changes. Otherwise we leave it be and spend our time being productive elsewhere.