For those who prefer to travel light--no phone, no laptop, no major purchases abroad--there's always the tried-and-true phone card.

FORBES: How To Call Home From Outside The U.S.

True, card-based hucksterism has been around for decades.

FORBES: Voyeurism for Profit

"People believe that APRs are a dependable way of comparing credit cards, but our research shows that APR cannot to be relied upon for true credit card comparisons, " said Alena Kozakova of Which?

BBC: Which? has made a "supercomplaint" to the OFT