Hello, OP here.
So, at least two of the posters here seem to have organised their lives from the ground up based on a six week school holiday. I say congratulations to you.
Unfortunately for me whilst we were busy working, buying a house and having said 2 children I seem to have forgotton to do so. Silly me. Yet however, I've still a year to go and based on my own interpretation of my intellect and ability I feel that 1 year is enough time for me to plan ahead and achieve a viable work/life/school balance during the 2014 school holidays. Some of it will be taken up by our annual holiday anyway.
I'm sorry if my formulae for doing so causes passion to rise in some people.
FWIW I live and work in London which is expensive*, am not fortunate enough for my wife to stop working (although nor does she want to). I can work flexibly, but that wasn't the question I asked. I was merely asking how others balance the issues to glean the benefit of thier experience.
I sincerely wish you all a very nice day
*I realise this is a choice and I could move to the country side near Leeds and raise sheep for less blah de blah....