My husband objected to the post-it notes. It wasn’t the impact to the environment (I used eco-friendly ones at almost four times the price), nor the nails banged in the wall to run strings across to represent plot and sub plots (we could hang pictures off them afterwards) but the sheer size of it. An average 100K novel would run to fifty or sixty chapters, each containing between one and twelve post-its. ‘This has to stop,’ he said. ‘I can’t bear to look at the mess.’ This is why I now write in the spare bedroom, with the door closed.