Build two sets of layered clothing for everyone. Skiing weather is impossible to predict, so layers offer the right combination. Top thermal underwear or long johns with long-sleeved tees or turtlenecks and insulated ski pants. One-piece snowsuits are ideal for younger kids past the potty-training stage. Your next layer is a light-weight waterproof jacket or shell. Top off the ensemble with a ski parka.
Accessorize for safety and comfort. Frostbite is one downside of a ski vacation. Cover whatever skin is still peeking through with gloves or mittens, scarves and hats. Bring extra hats and mittens for the kids, who are notorious for losing them. Ear muffs are fine, but headbands that go around the ears are better. Goggles are must for the slopes to ward off the sun's glare. Keep warm with thermal socks and comfy snow boots. Remember that socks get wet; pack extras just in case.
Protect your skin with sunscreen and lip balm. Drier air and a strong sun can sunburn everyone faster than a day at the beach.
Equip your family with ski equipment if you have it. Renting is another option and saves you from lugging everything around. Helmets are usually supplied when you enroll your child for ski school, but if you're going to be the teacher, bring a helmet.
Pack for baby if she is coming as well. Start with something to carry the baby in-a collapsible stroller or a baby backpack. Fit the rest of your baby gear (extra diapers) into a combination diaper bag/travel tote bag. The ones with lots of compartments work best.
Prepare for waiting with toys, books and snacks. Long lines are always a possibility at a ski resort, whether it's waiting for equipment or catching a ride on a ski lift. Cut whining down by pulling something out of your magic bag. Waiting time is also a good time to refuel with a juice box and granola bar.
Fill the side pocket of your backpack or tote with tickets, reservations and brochures. By keeping trip information together, you won't waste valuable time looking.