(RD) - While traveling can burn a big ol’ hole in your wallet, you probably do some damage long before you even reached your destination. Sound familiar? Believe it or not, you have fallen victim to the sneaky way airports are tricking you into spending your money.

Granted, some airport purchases are better than others. There’s a secret perk to buying books at the airport, for example. But if you stock up on duty-free wine before boarding the plane, it’s likely that you’re wasting your money.

Turns out, flying with a bottle of wine in your suitcase can change its flavor, Roy Moorfield, an international wine consultant with Cathay Pacific, told news.com.au.