Does anybody do this? I'm thinking about snacks that might be cheaper here like trail mix etc. Also we are going over Easter and I want to bring some treats for the kids for Easter Sunday. MY son is diabetic and we've always carried juice and soime snacks with us but I'm thinking of bringing a bit more in our luggage this time. This is also our first time travelling with no food service on board. I'm not even sure if you can purchase meals. (travelling AirCanada) Can we bring along something from Subway for example? My son has to keep to pretty regular meal times and I don't want to take chances with what might be available on board. Any info would be greatly appreciated.