Packing only carry-on luggage is one of the easiest ways to save money while travelling. Paying for stored luggage can be expensive depending on what airline you choose to fly with, but almost every airline will let travellers bring one carry-on piece of luggage and one personal item with them on the flight for free. If you pack correctly, you can get everything for a week-long trip into one carry-on by rolling clothes, rewearing staples, and limiting the amount of shoes you pack.