Is it normal to be jealous of a toiletries kit? I once felt pangs of dopp-kit envy when I caught a glimpse of a fellow traveler's perfectly organized toiletries bag, filled with little labeled bottles and just the right amounts of everything. As a consequence, I endeavored to unearth the secrets of a lighter, leaner toiletries kit. The following is what I found. Here are eight tips that will help you achieve a perfectly packed, trimmed-down set of products, with everything you need—and nothing you don't.