I am adding this item to my car survival bag and my get home bag. Maybe one in my bug out bag?

My work would give us a new set of insulated winter bibs or coveralls(your choice) every year. They stopped that awhile back but I probably have 15 or more pairs. I would wear the same set for 5-6 years before I pitched them. I have kept a pair of bibs along with 2 pairs of wool socks, stocking hat, scarf and 2 pairs of gloves in a gym bag in my car for years. Also a fire making kit in a small tobacco tin. I have a wool blanket covering my back seat and a small tarp in my trunk. Stuff just stays in there. Every fall I take it out, check it and put it back in.