While a book can be a great way to pass the time on a flight, try and pick up a book before getting to the airport. Libraries also have great options for e-books that can be borrowed instantly (if you already have a membership) and then returned once your plane lands. This can keep you from having to spend money at the airport and help you avoid late fees from the library.
While it’s important to stay hydrated while traveling, skip the airport shops. Instead of buying something to drink, bring a reusable, aluminum water bottle and fill it at a water fountain after going through security.
Not only are the prices of neck pillows increased at the airport, there’s no way for you to know how long the pillow has been there or how many people have touched or tried it on during their travels. Try to wait until you reach your destination to pick one up.
Exchanging currency at the airport is a convenient option but usually costs more with higher fees. If you have questions about exchanging money, talk to your financial institution before leaving for your trip.
Just like the food and beverages offered at the airport, minimal competition means souvenir shops can mark-up their prices. Keep a list of the people you're wanting to purchase souvenirs for and keep it with you during your shopping trips. This will help you from forgetting anyone and preventing a stop at an overpriced airport gift shop.