Write a 200-word story using a maximum of 50 unique words. Plural and singular count as one. Nothing in particular happens when the timer runs out.
Set a timer for, let's say, forty-five minutes.
Now write a 200-word story.
BUT the trick is: you get to use only 50 words to do it.
When you hit 50 words that's it: you have to start reusing words.
(Let's allow plurals. So "cow" and "cows" count as the same word.)
The final product is to be exactly 200 words (not 199, not 201).
Ready?