have one's ducks in a row

To have one's ducks in a row is to be well organized and prepared, with all the necessary elements properly arranged before proceeding.

The idiom suggests methodical readiness, like ducklings following their mother in an orderly line.

Make sure you have your ducks in a row before the presentation.

Someone who doesn't have their ducks in a row appears disorganized or unprepared for what's ahead.