Preperation, preperation, preperation. Where i live in western NY we see our share of winter time structure fires. My old dept and my current dept have prepared in different ways. One way is to use axle grease on our engines on the connections so they are easier to thread off in freezing weather. Me personally i have a small bag at the station with extra gloves, extra nomex hood, winter beanie hat, extra socks ( NOT COTTON) sweatshirt, a couple of power bars , my own preference etc.. We keep sand in buckets on the engines for when traction on scene becomes a problem and it will. As always just slow down and take a look around!