If you are visiting the Centre:MK then why not park across the road rather than the centre / attractions car park. MK has some of the cheapest parking I have ever seen and if you park across the road from key attractions you'll pay as little as 25p per hour parking rather than a few pounds. A little saving plus you get some excercise! :-)
- Family Travel
By plane, you have two choices, most of the people I know go via London. There is however a (new?) airline to Birmingham. You still have to rent a car but this is much more easy, you don't have to drive through the overcrowded M1...
For the way back, I drove along smaller roads (A5 to Coventry), lovely misty and dark atmosphere...