I'm sure we can follow her plan to the letter.

His agenda made sense, and he followed the plan to the letter for the first 10 miles of the stage.

But instead, there I was following her instructions to the letter.

You just have to follow the instructions to the letter.

Both had reported that they were following instructions to the letter.

Antonio plans on following her mother's plan to the letter.

He gets her to follow his instructions to the letter.

"As you can see, we were following your instructions to the letter."

In a real situation he'd follow those to the letter.

Do be a good boy and follow the instructions to the letter.