A big pet peeve of mine is having to explain something to a designer that I already covered in a meeting they were in. For some reason, many designers I’ve met and worked with seem to think they can just remember everything important without writing it down. They can’t, and I bet you can’t either.
Your creative director doesn’t want to waste time asking you to change something that you should have had in your notes.
Your client doesn’t want you to waste their time by sending back work that didn’t cover everything they asked for.
Get a notebook. Take it with you to meetings. Write down the things that you hear.
The best designers I have worked with have been good note takers. They listen. They write it down. They ask questions.
If you prefer taking notes on your phone or laptop, that’s fine. Just make sure you are taking notes somewhere, and that you review them before starting on your work.