Here are Some Useful Tips for Beginner Travellers
Make copies of your important documents both online and on paper
Make sure your passport is up to date and won't expire soon
Purchase travel insurance, especially if your credit card already provides travel benefits
Ensure you have additional medication and medical supplies in your suitcase
Last items in your carry-on will be most accessible, so pack your passport, ID, ticket, headphones, etc. here
Use Google Flights or another flight search engine to monitor pricing
Even if it costs a little more, try to book a nonstop flight as opposed to one that requires connections
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