Travel:
- Passports
- Accommodation details
- Insurance documents
- EHIC/GHIC cards
- Boarding passes
- Wallet with bank/credit cards
- Some paper money
- Phones
- Chargers, travel adaptor
- External battery
- Other tablet/laptop/devices
Flight:
- Headphones
- Sweets for descent
- Snacks
- book/magazine
Ski hardware
- Skis /snowboard
- poles
- boots
- Any tele or snowboard leashes
- Helmet
- Any wrist guard/knee pads/body armour*
- Ski/snowboard bag / boot bag
Mountain outerwear
- Jacket and salopettes
- Goggles and sunglasses
- Gloves
- Warm hat
- Scarf/snood/balaclava
Mountain innerwear
- Fleeces
- Thermal tops
- Thermal bottoms
- Ski socks 2-3 pairs
Mountain kit
- Daypacks
- Cameras
- Ski tuning kit / multitool
- Sun cream
- Lip salve
- After sun
Evening clothes
- T-shirts, trousers, belt
- Warm jumper for going out
- Normal socks, underwear
- Warm shoes/ boots
- Light gloves, hat, scarf
Hotel
- Pyjamas
- Slippers
- Swimming kit
- Games
- Toiletries
- Prescription medications
- Over-the-counter medications
- First aid kit
Here is the thinking; and the options:
Reader-suggested additions