My uncle entered a pic in the Post contest one year, and won a 2nd prize in one of the categories. Thing is, he isn't much of a photographer, but he saw a good subject and went for it. His aunt (my great aunt), began to climb a tree by shimmying up the trunk. She was 89 at the time and proud of her physical ability, plus she had a bright purple sweater on. He took a picture of her peering from around the trunk, her face aglow with the accomplishment and her purple sweater a punctuation mark of color in anotherwise normal brown and green background.
You never know when the opportunity might arise, be ready!