Get your ducks in a row

Photo of a row of ducks
The idiom get your ducks in a row means to get organised and ready to do something.
This idiom originated from carnival games where you would shoot wooden ducks and win a prize if you hit a certain number of ducks in a row. Actual ducks naturally organise themselves into rows quite often.

This event is really well organised, they sure had all their ducks in a row.