We are going on our first family holiday to Greece next week, and are taking buggaboo with carrycot (dd is 4mths). We are travelling from heathrow on Olympic airlines, can anyone tell me how far I can take the buggy - will I have to check it in with the luggage, or can we take it to the plane (this I doubt?) We have a sling she is happy in if I walk around, but I would like her to sleep before we board (ha ha), as the flight is at 10pm. Also, are we ok to take formula in bottles in hand luggage or is it better to take bottles with water and mix in formula on the plane?