Eagle Creek Pack-It Specter Cube - $15.95

If you want to organize your luggage without adding a bunch of excess packing-cube weight, check out the Eagle Creek Pack-It Specter Cube. This cube's lightweight fabric makes it easy to use one (or two or three) in your main luggage. Fill the cubes according to outfits or types of clothes and, on the way back, fill one with all your dirty laundry. - $15.95