Now that most airlines are charging passengers for overweight bags, luggage companies are rolling out a variety of lightweight carry-ons with heavy-duty features and roomy interiors. One of our favorites is this HEYS USA durable polycarbonate roller bag, which can expand to accommodate extra clothes for longer trips. The hard-side bag weighs just 8 pounds and is small enough to carry on, but it has a TSA-approved lock that can be opened by airport security if you decide to check it in. It's available in a carbon-fiber pattern or brushed gold.
Cost: $450