"You may have saved us a great deal of trouble."

You'll just save me a great deal of time and travel.

"Why don't you save us all a good deal of time and tell me?"

It would save a deal of trouble, and we should have had our night's sleep.

And perhaps everybody in the world would be saved a great deal of trouble.

This can save a great deal of time when they are being worked in the field.

It would have saved a great deal of trouble on both sides.

"But it may save a great deal of trouble later."

This may cost more at the time but could save a good deal of money in the long run.

We could have saved a very great deal of time.