Things you should have at the airport.

Consider a small neck pouch to ease your transition at the gate:

Include:

Airline boarding pass & checked bag receipt 
Passport
Travel Vouchers for prepaid reservations
Credit Card
Phone Card

Small amount of cash for purchases while in transit

In your Carry-ON

Reservation confirmation
Drivers License 
Medical card
Copy of prescriptions                                           
List of medications
Travel Insurance papers 
Contact # for insurance and  lost credit card 
Currency conversions
Personal checks
Small bills for tipping
Journal
Guidebook