I am planning to return to work for three days a week in September and am looking for a flexible childcare option. The reason for this is my partner will be able to look after our son on some of these days (though his shifts vary week to week) and my mum will be able to take the odd day too. So we need a childminder who can be flexible about the number of days a week they will work, with a week or so notice. Is this a realistic hope on our part? All recommendations and advice welcome!