I pack it involves a lot of prior research and planning. I exclusively travel with only a carry on, and since this is a five day trip in a very cold locale, I want to be sure I'm well prepared. I spent a lot of time over the weekend pinning a few outfit inspirations of winter layers to help me figure out the best items to pack. Here's some of my favorites.faux fur lined parka, chambray shirt, some of my flannel shirts, one or two lightweight sweaters, and maybe a vest or faux leather jacket. That way I can easily stay warm without taking up a ton of room in my carry-on. Oh yeah, don't worry I won't be forgetting a bikini. Our first stop is the Blue Lagoon. Yay, spa day!