How clean is your House? UK Style

I've just been watching the UK show, "How clean is your house?" and I am astounded at how filthy the inside of some houses can be! The fact that people would just turn a blind eye to the dirt and mess that is around the house. I think that I would not like a dirty place, as I'm pro-hygiene. Just thinking of all the germs that is lurking on those filthy homes! Ick!!!