Winter has the advantage of long dark evenings, but the risk of tripping over on the pavement – if you are nosey and walk with your head turned sideways to see into the windows of homes where they have not closed the curtains. I love seeing choice of colour schemes and furniture, signs of lifestyles; room full of toys, a cello and music stand or a wide screen television hung over the fireplace revealing to the whole street what they are watching.

Being on a train, coach on the motorway or upstairs on a double-decker bus has the extra advantage we can’t be seen spying on the lives of others; peering into their back gardens, watching a farmer walk his cows over a motorway bridge or busy shoppers ignoring a homeless person in a doorway.

When I was 21 and officially on my working holiday, with destination, career path and accommodation vague, I would look down from train or coach windows fascinated, sometimes envious of other people with their real lives. Going to work, pushing prams, shopping, gardening and hanging out the washing; putting washing on the line is one of the few domestic tasks we can observe, from the person leaning over their tiny balcony in a block of flats to a lone cottage on a hill, the wind ready to tear the sheets from their hands.

Hanging the washing up is my favourite domestic task. This is not a discussion about housework and who should do what. Clothes and bedding need to be washed, meals prepared and homes large and small cleaned; somewhere along the line someone has to do it and my favourite job is hanging out the washing. Yes I know towels come out of the tumble drier lovely and fluffy, but it’s hardly a spiritual experience.

When I am in my little garden hanging out the washing this is the real life I observed so long ago. The fact that I am out there means either I’m basking in the sun or being whipped by an exhilarating wind, either way enjoying nature. Looking up at the sky, observing the birds and tidying up the flowers are all part of the experience and an antidote to the internet; though I often grab my phone to take a picture of birds, flowers or clouds to put on Facebook or Instagram.

Of course you will know from books, films and television dramas that secret agents, detectives and important politicians never need to do the washing. But in my novel Brief Encounters of the Third Kind, Susan is a very ordinary woman in an ordinary London suburb. It is when she is in the garden hanging out the washing that something strange happens that will change her life.