RDP Saturday: Substitute

I need a substitute to do the housework
Someone to do everything and not just to lurk
I wash and iron and do the cooking
Mr. Swiss does not iron, the photo is just for looking
I need a robot that will do it all
Someone to be at my beck and call
That is just a dream and will never be true
I am irreplaceable which has become the rule
So life will continue, there is no other lot
When horses stop working, they are usually shot

RDP Saturday: Substitute