My DD will be starting school next year and will have just turned 4yrs at the time. We have really had things easy with regards childcare as she has been in full time nursery since 6 months, so the fact my husband and I work has been fine. However schools bring a whole new challenge what with so many long school holidays. My MIL would be more than happy to help out but lives about 100 miles away. I'm sure she wouldn't mind coming to stay with us to cover some of the time, at least initially, but I am just curious as to what age you would consider allowing a child to go away to stay at grandparents (or Aunts etc) for say a week at a time when they are not just down the road and therefore couldn't bring them home quickly if they got really upset?