Before you get into the nitty-gritty of packing, it's always a good idea to check what exactly you are able to pack. So, be sure to contact your airline and iron out the baggage allowance you're permitted. After all, you don't want to go through the trouble of carefully packing all your items only to be stuck with unnecessary overcharges on your luggage. Remember that you don't have to cram every single thing into your suitcase – you'll be surprised at how much you can stuff into your personal carry bag. If your flight is scheduled to be a long one, don't forget to pack up some essentials like a toothbrush, eye mask, and headphones to make your flight an easier one.