"The portable Skinbetter SunBetter Sheer SPF 56 Sunscreen Stick ($45) landed right on my desk just before a trip to Mexico, and boy, am I glad that it did. Not only did its compact size and solid mineral formula make getting through TSA a breeze, it's also easy to throw in a beach bag for touch-ups. Even better for my travels to a warmer climate: it never felt tacky on skin or left any sticky residue, so I didn't mind adding lots of layers." – KC