I happen to know someone who 5 years ago won $80,000,000 in the lottery. Today he still has the $80,000,000 principal and earns $100,000 in interest per month. Yet it's difficult for him to spend the money because each time he pulls money out to buy something such as a car, he has to pay about 50% in taxes. And if he gives more that $10,000 per year to one of his children, they have to pay high taxes. (Maybe money after all doesn't buy happiness, but at least it allows you to keep your yacht next to happiness.)
That being said, if I ever hit it big I would donate money to build/improve bicycle trails, and I would fund high school bicycling clubs.