While you’re still staying at his place utilize number 3 on your list.

Make up a list that needs to be done in order to keep the apartment clean.

Divide the list evenly between the two of you. 

Explain that this is important to you. 

Some people hate doing dishes or folding laundry. 

I don’t mind doing the dishes and putting them away. I don’t mind washing and drying the laundry but I HATE to fold it. My wife doesn’t mind folding it and will put it away. 

We are both neat freaks though and I am a stay at home wife, now.

When we both worked we split things evenly. On her days off she would straighten up the house and have it clean when I got home and I’d do the same on my days off. 

Good Luck