Buying and selling airline miles isn't illegal, but it often violates the terms of frequent flyer programs like KrisFlyer, ...

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While many people probably think of Etsy as a place to sell handmade goods, the website is also a great place to sell clothes. Tap into Etsy's community of artisans and vintage sellers and sell ...

He said Singapore's small size and low crime rate make it easier to sell airline miles in the city-state. "It's a fairly compliant society. People usually do not take each other for a ride," he said.