Most people seem to have a good idea what they want when their turn comes up.
I had a pretty good idea what he was up to.
But she had a good idea where she'd find him.
Saying them words put a good idea in my head.
Maybe getting up hadn't been such a good idea after all.
The following day gave her a very good idea of what was to come.
I have a pretty good idea of what's been going on around here.
But she now had a pretty good idea who might.
At least he had a good idea how to get back.
No, here was our only chance and a good idea.