You know what I would do. Stop cooking meals for her etc.
If she doesn't think she should touch other peoples dirty dishes then why should YOU cook her meals?
Why should YOU wash her clothes. Why should YOU drive her places, give her money?

Is there anything on your shoppinglist you get that really you only get because you know she likes them? don't get it anymore.
Do you buy her toiletry needs? don't buy them anymore.. Well still get them but don't give them to her until she runs out & freaks out that you didn't restock the bathroom or where ever it is she keeps them.

When she starts complaining simply say in your most whinny voice possible while stomping your feet "WHY SHOULD I HAVE TO DO THESE THINGS FOR YOU?!" then storm off to your room, slam the door & turn your crappy teenybopper music up loud.

Hopefully she will see your point.