If you are skiing off-piste (a term I just learnt, something like the free-style in hiking where you are off-trail and on your own with cairns left by helpful people like you to lead you) you need an Avalanche Safety Kit.
An avalanche air-bag like the below could save you.
Glop stopper wax which “temporarily improves the glide of your skins while adding a waterproof barrier to help prevent snow from sticking. ”
You need a beacon as well as Avalanche probe
You should learn how to build a quinzee.
//www.dailymotion.com/embed/video/x33ccvj“>The Wolverine Way by Douglas Chadwick