Was in La Plagne last year and was caught out by the late night ski lifts. If you are drinking in a different bit of the resort, especially if lower down than where you are staying, make sure you figure out what time the bubble shuts (it was 11 something last year). We managed to miss the last lift and ended up having to walk up the piste to get to our appartment.... No idea how long it took but do remember stumbling through hotels and using their lifts to get out at exits higher up the hill!
Snowboarding was awesome though and there was good good alpine food (none of this MacDonalds hal