I've been using the same mind set ever since I started climbing concerning bivys and what gear to take. A light weight sac, all needed climbing gear (pared down to the minimum), a sweater, wind coat, hat and gloves, ediable food and water bottle. Depending on the rt., one ice axe, one pair of crampons, a thin rope. No stove, no bivy sacks, no foam pads, no electronic devices(sound or navagation). The idea is to lighten the load so that moving over tough terrain is easy and FUN! You can tough it out for a few nights, play like your an Afgan.