This is definitely a topic that’s popped up before, though not very recently. I do agree that key management in the game currently is poor, and it’s particularly annoying that we can never be sure whether we’ve failed to find the lock that matches a key or if, eg, we’d picked it before we found the key. Because of this, I don’t think it’s quite as simple as vanishing keys when they’re used, though I suppose they could vanish when the lock they open is unlocked/forced/destroyed. But a zero-weight key-ring that keeps keys out of the way would work for me.
