Do you like your home to be clean but you live with a slob?

We just recently began living together. I knew he was a messy person, but he can't even put his empty soda cans or empty water bottles in the trash can which is 2 feet away. He leaves the lights on when he leaves the room, forgets to lock the door at night, leaves the cupboards open in the kitchen every time he opens them. He is very nice to me and treats me well and I have to add that I treat him very well. But I am exhausted having to keep up with him. Any suggestions to get him to stop doing these unnecessary things when he could do them himself?
Do you like your home to be clean but you live with a slob?
Post Opinion