I don't clean myself so, yes it is on the same day each fortnight -if I had to clean myself, and I hate cleaning, it would not get done I dont think on a regular day.
Even though I am fairly regimental in what I do day to day -like when I wake it is always 2-4 questions on AA -this morning I thought "not today", but could not help myself -yeeeks.....another addiction.
I have always done just a bit here,and a bit there when I am able to. As a kid,I recall that Saturday morning was Housework time,and the entire family, including Dad,got stuck in so it was done and dusted(forgive the pun?!!!) in just a few hours leaving the rest of the weekend for Family pursuits which often meant a picnic or a country drive!!
My family and I just fit it in when we've got time. I try to do a bit each day, so I'm not left with an overly dirty house, but try not to get too obsessive. As long as the wet areas are clean, the kitchen is spotless, and the floors are swept, I tend to be quite relaxed about it.
I clean something pretty much every day but my wife and I do go through days where we just attack the house with cleaning products. These days are normally just chosen at random, when we feel the house needs a going over.
I try to give the house a good clean every Friday. That way I know the house has been given a good clean and it looks nice for the weekend, in case guests call over, which they sometimes do. The rest of the week involves maintaining the cleaning day to day, just keeping things tidy until Friday rolls around again.