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List any plans you have for your trip -- restaurants you'll eat at, events you'll attend, attractions you plan on visiting -- and think about what you might do in your free time. Knowing what you have planned will tell you exactly what clothes and other items to bring so you're not packing for the unknown. Don't guess what you should pack or pack outfits for hypothetical events. Include any clothes, shoes, toiletries, or other items you'll need on your trip. Avoid deviating from the list unless you remember something essential you forgot to include. A list will give you confidence so you don't pack unnecessary items out of fear of being unprepared. Packing last minute is stressful and you're more likely to pack unnecessary items when you wait to pack the night before your trip. Start packing at least three days before you leave so you can take your time to assess what items you need to bring. Rolling your clothes will save you more space in your luggage so you can limit the number of bags you take on your trip. Folded garments tend to stack up quickly, but you can easily squeeze a rolled-up shirt or pair of pants into the extra space in your bag. Use the shampoo, conditioner, and soap at your hotel instead of bringing your own. Leave your sunscreen, toothpaste, shaving cream, and other toiletries at home and purchase some at the store when you get to your destination. Packing full-size bottles of products like hairspray, lotion, and face wash will take up unnecessary space. Look online or in your local drug store for smaller-size bottles of the products you want to bring. If you can't find a travel-size option for something, buy a small, refillable travel bottle and fill it with the product you want to take with you.
Write out your trip itinerary before you start packing. Make a list of what you need to pack. Pack for your trip in advance. Roll your clothes instead of folding them. Limit the toiletries you bring. Use travel-size versions of your favorite products.