Ducks in a Row

Does anyone know the phrase 'Ducks in a Row'?

 Here at work they fell about laughing when I said that many carers I visit have all their ducks in a row - my colleagues said they'd never heard it before!  

So here are some ducks in a row to remind us of what 

it feels like as so often they aren't, as one (or more) have fallen off.

 These ducks look rather hip - probably how we imagine we are 

but perhaps don't come over that way?

 And here's a pic of us all, gathered behind Katy!