From frequent travelers to fashionistas, there is no "one size fits all" when it comes to carry-on luggage.If you fly so often that you are on a first-name basis with your local airport's Transportation Security Administration agents, you need a carry-on suitcase that is durable enough to withstand repeated use.Your carry-on bag should be as stylish as you are, so you'll want an option that expresses your unique personality. But if you are backp…