1. Always pack a small towel as it is useful for drying off at beaches, picnics, or when needed, even though hostels often provide towels. 2. Buy a small backpack around 35-40 liters to force yourself to pack lightly and avoid overpacking. People tend to fill available space so a small bag prevents bringing too many things. 3. Pack lightly as you don't need as many clothes as you think. Make a list of essentials, halve it, and only bring that list's worth of items since the small backpack limits room for extras.