10 items in this article 2 items on sale! Photo-Illustration: The Strategist; Photos: Retailers, Joe McKendry For the last six months, a family matter has sparked multiple trips across the country. I’d thought I had my travel essentials down to a science, but that was when I took maybe two flights per year. Since last August, I’m up to six flights. With that much back and forth, I’ve become quite precious about the limited space I have in my carry-on, and I’ve been working on balancing