There is an interesting example of Winter survival in the news today courtesy of KSL.
While these young men made an initial mistake that got them lost, they managed to remain calm and focused on survival. Creating a snow cave, starting a fire, etc. are all useful skills and as this example clearly shows can help to keep you alive.
Another aspect of preparedness is learning from our mistakes and other’s examples. In this case, if they had their avalanche beacon and some other gear, (perhaps some EDC items, or an emergency kit) they would have been located much sooner or not been lost in the first place, and been more comfortable while waiting for rescue.
Read the article and absorb any information you can so you can use that information if you ever find yourself in a similar situation.