There's a time when less is more and more . . . simply won't fit into those prepackaged, airline-approved travel sets. Take those occasions when you don't need a week's worth of three products, but want three days worth of closer to seven products.

I've picked up some three-ounce travel bottles [1] for things that run out quickly, but what about a dab of shimmer lotion for a night out or some homemade toner [2]? Well, the next time you're at a hotel that provides the essentials in these tiny, one-ounce sizes, empty (or use it [3]), and bring them home in your carry-on.

Once home, pop them in the dishwasher and suddenly you've got tiny (free!) bottles perfect for those bitty essentials. That way your quart-sized bag will still fit those items that take up tons of space (like deodorant [4]) and have room for the rainbow of lip glosses you need to bring too. You know, just in case.