How to use repetition—the rule of three

The golden rule of repetition is three. It’s like ice cream. The first scoop you eat and delight in. The second scoop is still yummy, but somehow not so much. The third scoop all of a sudden makes you want to gag. Nothing changed, right? The ice cream is the same. What changed is your perception. Too much of a good thing can make you sick. 

Same with writing. 

There are times when you should avoid repetition altogether (if you want to make a strong impact) and times when you need repetition...