Couch Surfing and AirBnB allow customers to travel on the cheap while staying on someone's couch or in their spare bedroom. They're a great alternative to a hotel at a fraction of the price. It also allows the traveler to get inside information on the city from the host. Seemingly a win-win situation! Thinking about it more, I don't think I could ever host a couch surfer. Regardless of any stereotypes, I could never trust a stranger sleeping in my home. Would you ever host a couch surfer or allow a stranger to stay in your guest room? Image: Flickr user mandiberg, licensed for use by Creative Commons.