I find the studios are easy because there are so many shows -Animagique, Cinemagique, Stitch Live, & Playhouse Disney.
Armageddon gives you a blast of fire and quick warm up, but the girls might find it a bit scary.
In the main park, you can't fault Videopolis as mentioned, but POTC, Buzz Lightyear, Star Tours have indoor queuing areas which are a welcome warm retreat.
We've had several cold trips, I find that the disposable hand warmers are a godsend too, they can be quite expensive and in the past I've bought them in bulk from Ebay, although my local Home Bargains had some Gelert ones in recently and only 19p/pair.
Often see youngsters with fleecy blankets in the park and if you're planning on watching the stunt show, I'd take something to sit on
The tram tour can be cold too, although the dragon gives you a quick burst of warmth.
Re: eating in the park, last visit we ate in the counter service restaurants, but shared meals. It's perfectly acceptable to do this in the counter service ones, even if it's just meals for the children, last visit my son 13 eats like a horse was having a set meal, but as I was on Weight Watchers, I had my own snacks with me and just bought a hot drink and as previosuly mentioned this usually gives you a receipt for 1 other drink later in the day, so pay seperately to maximise the benefit.
We've had to postpone our March trip for July and I'm wondering if we'll enjoy it as much, last January, it reached -16 while we were there, we had so many layers we could hardly move but we had a superb time, it was my nephew's 5th birthday and first visit and it didn't affect his enthusiasm or enjoyment at all.
Have a great trip
