I went out on a short hike a couple days ago in Shenandoah (pictures to come). The temperatures got down to around 7 or eight degrees and I really wasn't prepared for it, but I had the biggest problem keeping my toes warm. My heels were fine on the pad and in my mummy bag, but my toes were not (yes, I had only a pad and a sleeping bag in 7 degrees).

What do y'all do to fix this?