One of the best practices for writers is to follow “The 5Ws” guideline, by investigating the Who, What, Where, When and Why of a story.
If you can’t identify what makes your story unique and interesting, chances are nobody else will either.
- When did it happen (time of day, day, month, year)? When was the last update? When can you expect to learn more? When will the effects be felt? “Today.”
- Who is driving the story? Who is it about? Who is affected? Who benefits? Who loses? In this case “I.”
- What has happened? What are the consequences? What does this mean for the reader? “went outside .”
- Where is this taking place (building, neighborhood, city, country)? Where should readers go to learn more? “outside.”
- Why did this event take place? Why is this important in the big picture? Why should readers care? In this case it’s “for milk.”
And that’s how simple it is to construct a story.
Admittedly you could make it a lot more involved.
Add conflict – perhaps it was raining, making his journey more difficult?
Add exposition – describe what the journey was like.
Add a resolution – that he got his milk and went home and enjoyed it.