Airing the house.
It's such a great way to cleanse and refresh a home. One of the first things I like to do on a day I'm at home is to open the windows in the bedrooms, bathrooms, and living areas and let the breeze in.
Research shows that ventilating a house helps to keep dust mite numbers down, particularly by reducing humidity levels, and clearing the air after vacuuming.
Of course, it does depend on the weather, and security considerations.
This time of year—late Summer in Australia—provides perfect airing conditions!