The weather is as good as it's going to get for the next year, thousands of half-naked gorgeous people are frolicking everywhere, and Seattle is teeming with cultural events: Clearly, it's time to lock yourself indoors and write a novel. Thousands worldwide are taking part in the 32nd annual 3-Day Novel Contest, completing 90- to 120-page manuscripts between Saturday and Monday. Third prize is $100. Second prize is $500. The winning novel gets edited and published. Why waste time at play when you could bang out your masterpiece in one 72-hour stupor? (See www.3daynovel.com for details.)