My colleague is like that, she spends all day cleaning her house, and when she goes away with her family, she'll moan about how "filthy" the caravan/chalet/hotel room was, and how she had to clean it "from top to bottom"...every single time.
We were all talking one day about how it's difficult to have a lie-in at the weekend when you automatically wake up at (say) 6.30am, as you do every morning for work. My colleague said that she gets up and cleans her skirting boards every Saturday morning. The rest of us just fell about laughing, I only clean my skirting boards if I'm about to paint them, or if I'm planning on selling my house!