#8 Never Pick Up After Yourself
Your girlfriend is not your mother. Regardless of whether you have been together a day, a month, or ten years, she is still not your mother. It is not her job to pick up your clothes, wash your dishes, or follow you around cleaning up your messes. Don’t leave a pile of dirty dishes in the sink when the empty dishwasher is sitting three feet away. She wants to spend her time with you, not cleaning up after you.