You already know to roll your clothes instead of folding them. You have packed ear plugs in your carry-on for years. You are a seasoned traveler ― but that doesn’t mean you know everything about travel. We guarantee there is something on this list of 10 expert tips that will solve your worst travel woes. Zip Up I can’t tell you what you’ll need them for, but you should definitely bring a handful of plastic zip-top bags in various sizes. Gallon bags can help you keep dirty and clean clothes separate, or they might let you compress a portion of…