Packing carry-on only is becoming more and more popular, but trying to fit all the toiletries and cosmetics you need into that little TSA-approved baggie is not exactly easy. This grooming bar is a great way to get around the problem, since you can use it three different ways – for showering, for shaving and for shampooing. Not only does it eliminate the need for multiple products, it’s also solid, so it doesn’t even have to go into the liquid baggie. Plus, it won’t leak mid-flight. All of the ingredients in the bar are natural, so it’s safe on the environment if you’re hiking.