FireSteel Scout by Light My Fire- 3,000 strikes to light a fire. Just practice a bit first! Cotton balls smeared with vaseline help a bunch. $10 at Dick's.

YakTrax-preferably with the velcro strap for extra retention. Will save your butt up and down slippery slopes. $25 most places.

Toilet paper, double bagged. 'Nuff said.

Cheap, lightweight, compact lifesavers.