Carmen Roberts looks at the website where you can trade skills with a local in return for a tour of their city. Plus, the air steward who raps his in-flight safety announcement.
This and more with the best of travel on the world wide web.
Get in touch with Fast Track via
Watch Fast Track on the BBC World News channel on Saturdays at 0330, 1330 and 1830 GMT or Sundays at 0630 GMT.