Now that every quick trip involving a flight is a logistical nightmare, our favorite game is figuring out how to avoid checking luggage while still abiding by the carry-on liquid restrictions: Personally, I've become a fan of LUSH Fresh Handmade Cosmetics, a British company that seems to invent a solid version of every liquid-based product I use. If their solid shampoos weren't enough to make me a convert, they've just come out with soap-like "Emotibombs" ($4), which you plop at the drain of your shower to create a relaxing, aroma-therapeutic experience for those of us who don't have the time to soak in a tub—much less the space in our carry-ons to pack bubble bath.