Couchsurfing Couchsurfing is a website where people can meet another people to share their houses. Sometimes you are the host and sometimes the guest. I only played the guest role but i will prove to do the other role. Thanks of it, more people can travel around the world discovering places by a local hand. The host not only share his house. He shows you his favourite places and gives you a very good advices about his city and his country. It could be the most cheaper way to make a trip. But there is a big problem: you need to have a good references for doing your first share. It is normal if you invite to your home firstly an unknown people.