Bring a reusable water bottle with you on your trip to save money and reduce waste. It will also come in handy when you're out exploring and need to stay hydrated. It's always a good idea to bring a small first-aid kit with you, including things like band-aids, pain relievers, and any prescription medication you may need. Pack a small bag for your carry-on that includes essentials such as your passport, ID, credit cards, and any medications you take regularly. This will ensure you have everything you need in case your luggage is lost or delayed. Also, pack a reusable shopping bag in your luggage. This will come in handy when you're out shopping for souvenirs or any other items you may acquire on your trip.