Get a cleaner in and share the costs.
I am actually thinking along the idea of asking if the landlord could drop say... £40 off my monthly rent and I'll do the cleaning at least once a week for the house shared area.
You think that's an idea to suggest or like HEADRAT said, get a cleaner in?
The landlord sends someone in once a month to do a "deep clean", starting this Sunday, so I might wait and see how it goes.