Traveling for the holidays can cause even the most stalwart adventurer to lose her cool. There's the weather to contend with. Gifts to wrap and pack, and then rewrap (if the TSA stops you, and they will). Uncomfortable conversations with family members that usually ensue after the egg nog or grog has been tucked into a few times. And the luggage: How does one pack for a trip where there are so many variables like climate and impromptu parties? How can you plan what to bring when your bags swell and then shrink from gift-giving and receiving?

We asked luggage guru Joan Robinson of Rick Steves' Europe for some advice. Robinson teaches classes on the science (and the art) of packing. Here's what she had to say.

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As a European travel advisor for Rick Steves, how do you pack for so many different climates?

First, I always bring a large scarf or pashmina to dress up an outfit. You can also use it as a blanket on the plane. Second, I always bring tights, some opaque tights. You never know what kind of climate you'll be in. They're great for the plane and cold weather. Finally, make sure to have a long-sleeve shirt that you can layer and push the sleeves up. Say you're going to changeable weather, like Paris or here [Seattle]-one day it's 80 degrees, another it's freezing. Layers will help you adapt. What's trendy right now are vests, long vests, and long open cardigans. They're great layering pieces. Don't bring one heavy item, like a down vest. Bring a light jacket then layer. Even if you're skiing, you'll take layers off as you get warm. Oh, and a hat you can roll up. A wool hat like a beret is easy to stick in a suitcase and carry on the plane.

How do you maximize space in your luggage?

I carry on two items and bring a bag that I can carry as a handbag.

I advocate rolling, like one does with military clothing; that's the best way to keep clothes wrinkle-free. Everything you bring should have about three different uses for it. Another thing I say in my packing class is "If you don't wear it more than three times don't bring it." An LBD is something that can easily be worn three times: as a tunic over pants or tights with boots, as a holiday dress with jewelry, or casually with the pashmina scarf. Layering dresses with accessories can change the look. And have colors that will pop neutral colors and make items look different.

Another thing, you can't bring too many earrings. As long as they fit in a little pouch, put as many as you can in there to change up your outfits.

How many pairs of shoes should one really pack?

I advocate bringing two shoes, one casual-sandal or not-and one covered toe. Nowdays there are flats that can be dressed up or are fancy enough to wear to parties and nice restaurants.

How is it best to transport gifts?

They will unwrap your presents [at the airport] if you wrap them. So what I do is bring it in its box and bring my wrapping paper flat in a book or map. If it's a large item, I have it mailed online, adding a memo not to open until Christmas. More often than not I tend to buy little things as gifts, though.

If I'm going to Europe I will intentionally leave things out of my suitcase because I know I will buy it there. Those are the best souvenirs to bring back: belts for men, handbags for women, scarves. You see them every kiosk in Europe. Right now in Europe the touchscreen gloves are really popular for men and women. Souvenirs like that fit easily in your suitcase.

What is your favorite travel destination?

Hands down my favorite country is Italy-I'm half Italian! Venice in particular. When the crowds go home at night, it feels like you have the whole city to yourself. The way the light reflects off the buildings and the city changes color with the passing of the day...I could go on and on! Other favorites are Siena, Florence and Rome.

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