I have quit smoking and have stopped leaving things laying around the house

I have quit smoking and [color=red]have stopped leaving things laying around the house

Would you please explain for me the red part.

I would say having quit smoking made the butts the person used to hide, just worthless.

I won’t allow things to lie around the house. (It is ‘lying’, not ‘laying’, most probably)

I did not put things away, but just left them where I had used them. I’ve stopped doing that now (I put them back where they belong.)