Whereas travelling is basically about moving from point A to point B, there is no problem in having entertaining experience while travelling. Most airports around the globe are trying to make the expedition more exciting with state of the art restaurants, entertainment, and a whole lot of exceptional services.
Arriving in Sydney International Airport after flying in a tin can overnight is an exercise in fatigue. Then trying to negotiate through the crowds to buy duty-free is a sure way to turn frustration into anger. But now there is a hack, using an app, to bypass the duty-free checkout queues and get clean away before the immigration exits get too clogged with the walking bleary and weary. Simply buy online before you fly at any point in your journey, and collect on your way through when you travel.