Carry your passport for international travel, ID for domestic trips, visas if required, and any travel insurance documents.
Have a mix of local currency, credit/debit cards, and some emergency cash.
Include items like band-aids, antiseptic wipes, pain relievers, motion sickness pills, and any prescription medications you may need.
Ensure your phone is loaded with useful apps for navigation, language translation, local guides, and transportation services.
Pack according to your destination's climate and cultural norms. Always include comfortable walking shoes, as exploring often involves a lot of walking.
Besides the basics, consider travel-sized hand sanitizers, wet wipes, a quick-dry towel, and any personal care products you can't live without.
Having snacks handy can save you in situations where food is not available, expensive, or does not cater to your dietary restrictions.