At the time, getting hit by a car didn't seem like a great idea.
You don't go from nothing to a great idea without doing a lot of work.
You never know who's going to have a great idea.
And then we thought what a great idea for a book.
Great idea, he decided, a chance to learn from the best.
And I have a great idea as to how he could do it.
Her mother didn't think it was such a great idea.
Some people here have great ideas but they don't get them out.
Why am I not so sure that's such a great idea?
It was done in the name of a great idea.