How do you deal with tyrannical people who bark orders all day long whilst doing nothing at all to help

That’s my sister, she tells everyone what to do, but gets away with doing nothing at all. In two months she has unpacked the dishwasher once, all the other time me and her husband do it every day. This morning she gets up and tells me to unpack the dishwasher, like she does every other morning, I reply she needs do it for once, but nope. she tells me to clear the dining table, whilst all her junk sits there on it which she doesn’t move, every night she doesn’t even take her dishes to the sink after dinner, her husband has to take them for her, and did I mention he makes dinner every night and cleans up everything after, many times I help, she of course never helps in any way and never says thanks to anyone for anything. He;s like her slave. She screams and yells if anyone disagrees with her, or doesn’t do what she says. Don’t worry I’m moving in a few days, no way I’m living with this tyrannical bullshit.