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How to pack an emergency bag
Find a bag.
It can be anything from a backpack to a laundry bag, as long as is easy to carry and comfortable, though a large backpack with several pockets is ideal. Also, make sure it is made of a more lightweight material so that it reduces the weight you will be carrying around with you.
Pack as much as you think necessary, with at the very least one outfit per person, water purification tablets, the first aid kit, and food. However, do not carry too much because it will increase the weight you will be carrying.