I'm getting much better at saying "No" to new people. This is definitely a progress I made in therapy.
However, I'm still struggling with the same people I've already given into for years, where it's harder to break off their expectations.
For example, it's harder to come up with excuses when the person already knows I own a copy machine at home and she asks to make copies. With new people, they don't know, so I can just say, "You know, there is ABC copy services around the corner" and they will leave me alone.