A secret group of people called 'travel hackers' is vacationing around the world for free.
Travel hacking involves finding ways to earn Frequent Flyer Points to either fly for free or at a heavily reduced price.
Chris Guillebeau, whose travel hacking blog has 80,000 regular readers, stumbled on the idea while working as an aid worker in Benin, West Africa and wanted to travel back to the US with his wife for Christmas.
He said that he found that economy tickets were about 1,500 dollars, but he discovered that he could buy Frequent Flyer Miles on eBay and was able to purchase enough miles to fly Business Class both ways for only 1,200 dollars, News.com.au reported.
He once rented a shopping cart from a homeless man to help him push 2000 dollar worth of Sacagewea dollar coins to the bank.
The United States Mint sold the coins at their face value as part of a marketing push, so he bought them with a credit card, deposited them straight into the bank, paid off the credit card later and kept all the miles.
He made 30,000 Frequent Flyer Points at no other cost but his time - and the charge for the homeless man.
He said that he has received a hair loss consultation in exchange for 20,000 Delta SkyMiles - which was strange, since he was 32 at the time with a full head of hair.
He said that if a person can devote 30 minutes-a-month to earning Points through regular follow-up, they should be able to earn enough Points for several free trips-a-year no matter where they live.