Sounds obvious – the invited children. But what about when they bring their little brother/sister, stood there looking at you so pathetically? Or even asking for their bag!

Yes, I’ve had it happen. I’d done some small bags for the extra siblings I thought might come, then got complaints from them when their bags weren’t the same as their brother or sisters. Be warned. If you start down the sibling route, they take it for granted from then on.