Those are mostly examples, a machine capable of doing that would be capable of much more. If it can move clothes around it can probably work the washing machine, move the washing to the drier and hang up the dry clothes. If it can fetch a beer it can put the shopping away and maybe give a stir to whatever I'm simmering on the stove top. It could possibly vacuum better than a roomba.

Also for some things like the clothes hamper example, it's not a matter of saving much time but actually doing it where a lazy human (me) would just leave it.