If you're bringing a nylon folding camp chair you might want to bring some kind of insulation for the seat area. Closed cell foam is the best, but I've been known to use two layers of corrugated cardboard - which worked pretty well ... though while camping with Scouts cardboard is always at a major risk of ending up in a campfire it not guarded carefully. :-)

Oh, and bring lip balm!! Cold weather-caused chapped lips can cause a surprising amount of misery.

Ken