1) Zip-Lock Baggies : I love these for so many reasons! I usually like to bring about 5 of the gallon size baggies and then a handful of the sandwich size. I just stick them all inside one on the gallon size baggies. They don't weigh much and they are so helpful! I pack these on all our trips even the short journeys. They are also perfect in your backpack for a day in the parks! ~Got a wet swim suit you need to pack in your suitcase...… stick it in a baggie! (but don't forget to take it out as soon as you get home!) ~Have an open container of treats for your little one or yourself or several of the chocolates they leave for you at night.... stick it in the baggie! ~Have a ton of little memories from your cruise (animation drawings, kids crafts they make in the kid's club, etc. )….. stick it in a baggie! You get the point! They are super helpful! 2) Liquid Soap : I like liquid soap because I just feel like it