Traveling with just a backpack taught me that I don't need special clothes to exercise. I wear the same outfit for all my workouts.

The author travels all over the world, and packs one quick-dry, breathable shirt, a pair of shorts, and two sports bras for every trip. She borrows equipment when needed, including a Taekwondo uniform. Courtesy of Catherine Work Traveling with only a backpack taught me that most workouts don't require special clothes or gear. Renting or borrowing equipment has let me try sports around the world without spending a lot. Focusing on movement instead of appearances has made exercising while…