I love ice fishing! No better way to spend some winter calories.
Here's a trick for you winter campers taught to me by a friend that tested cold weather gear for the army. In very cold weather build three fires in a triangle leaving enough room for your tent and a place to sit out etc. Be sure to keep the fire back from your tent and you need three times more fuel, but......inside the triangle is shirt sleeve weather. No more burned face and frozen arse. I've used this trick several times and it's quite amazing inside the triangle.