This captures the state of the boys' rooms pretty clearly. Can you spot which is youngest on up to oldest? Hint: you can see less and less of the floor the older the child is.
This is not due to lack of parental effort, I assure you. But in the grand scheme of priorities, nagging boys to pick up clothes, recycle newspapers, throw away package wrappers, etc. just doesn't make it to the top of the list very often. And although I've been known to dig out truly aggregious pigsties on occasion, I'm buried in too much else to get to it very often. And it's not appreciated at all when I make the effort, so there's that too.