It's also a good idea to know your test results and keep a list of the medicines you take.
So it's a good idea to keep a log of what you do.
"I think it's a good idea to keep a closer check on them."
It is a good idea to keep your own computer up to date.
So it might be a good idea to keep me close at hand.
"It's probably a good idea for the time being to keep them closed at night."
It was a good idea to keep a candle in every room.
But it's not a good idea to keep someone important waiting.
It's always a good idea to keep children away from sick people.
But sometimes it's a good idea to keep your mouth shut.