Basic
Water, Snack food
Sunglasses, Hat, Sunscreen, Lip Balm
Rain clothing, Warm clothing
Gloves, Socks
Headlamp, Spare batteries
Pack
First aid
Navigation aids (map/compass, gps, etc)
Toilet paper
Hiking
Basic List
Footwear (shoes, boots, flip-flops)
Gaiters
Poles
Mountaineering (Basic)
Hiking List
Rope
Harness
Helmet
2 slings, lockers, and non-lockers
Mountaineering (Rock)
Mountaineering (Basic) List
Rock shoes or mountaineering boots
Alpine rack (stoppers/cams)
Mountaineering (Snow & Ice)
Mountaineering (Basic) List
Boots, light footwear (optional)
Ice rack (screws/pickets/hooker/tat)
Crampons
Ice ax
Overnight
Shovel (when snow is involved)
Tent/shelter
Sleeping bag
Sleeping pad (and coupler)
Stove/fuel/pot/spoons
Booties
Skiing
Basic List
Ski boots (and stiffeners), skis, skins, ski poles
Avi gear (beacon/probe/shovel)
Goggles/clear glasses
Other
Passport (International)
Pillow (Car camping)
Medication
Change of clothes to leave at the car