Top tips: Label your bag clearly and put something recognisable on it (i.e. a colourful ribbon around the handle) so nobody takes it by mistake. Also take a photo of your suitcase in case you need to show this to the airline. Keep all valuables (as well as medication and glasses/contact lenses) in your hand luggage bag and pack a change of clothes in your carry on bag too. Be sure that the person checking in your baggage attaches the correct destination tag to your luggage.