I can highly recommend the packing cells from Kathmandu - they are zippered with mesh tops and are amazing for being able to pack and sort your clothes and keep your backpack in order. We use ours all the time and they come in different sizes so you can have a small one for your underwear etc, then a medium one for all tops. I never travel without them.
Take contact details for all your banking intitutions etc in case you lose your cards or have anything stolen. Have copies of all your credit card details somewhere seperate to report if this happens.
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