10 things airport passengers should stop wasting money on, according to a former flight attendant
Briefly

"If you fly business class, you can usually save by waiting to upgrade at the airport. It might sound strange, but I always advise people to purchase an economy ticket at home and upgrade it at the airport."
"Never waste money on bottled water at the airport. You can't take liquids through security, but no one says you can't take an empty bottle."
"Just be extremely nice to the staff, and arrive early so business seats are still available. But don't wait until you get on the plane - flight attendants don't usually have that much power."
Read at Business Insider
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