This is a test of commonsense. Complete the next sentence:

How to start writing a book and stick to it
Go out.
To start a book you need to be out. Being out and about stimulates your mind and creates ideas you wouldn't be able to think about if you were sat at a desk.
Whether you're on the train, on a walk or even talking to a friend. You might want to take a notebook with you wherever you go-take a very small one, as you never know when any phrases or titles may come up.