Yoga is one of the few fitness practices you can do in your hotel room. But yoga mats don’t really fit inside suitcases. Gaiam’s solution: mitts and socks that have sticky grips on the palms and soles to provide traction on carpets and hardwood floors. You get all the grip you need — and they roll up into a sock-size ball, saving precious suitcase space. You can also use these for more stability on the mat during your regular practice if you tend to get sweaty palms or feet. Socks are $20 for two pairs (one is bound to get lost in the dryer), and the mitts are $10 a pair. Order from www.gaiam.com.