1. It’s about Susan.
2. She only takes an absolute minimum of baggage.
3. Any of the following: one extra set of clothes, a sarong, clothes pegs, black electrical tape, dental floss, some toiletries (tweezers, a toothbrush, cotton buds), some money, gold, some necklaces.
4. Because it’s easy and cheap to buy that at her destination.
5. A limited amount, about 200 dollars.