For British student Carly Connor a trip to London for a city break would be impossible if she had to pay for a hotel so instead she rents a room in a Londoner's home. Connor, 26, is among a growing number of people taking advantage of a surge in the number of homeowners offering to rent out a room for a night or longer, with the cash a welcome addition to recession-squeezed budgets. This new wave of hospitality sweeping the travel industry was sparked by the success of "couch surfing", where people could go online to book a free bed in a home, and is being led by a blitz of new websites that let tourists bypass resorts and hotels. "A lot of the time you find yourself with a host who is more than happy to point you in the direction of a few local hot spots that you otherwise would have missed entirely," Connor told Reuters. But the increasing popularity of peer-to-peer rentals has lawmakers on the alert in some countries, scrutinising tax, health and safet