Generally, there are three types of accommodation for travelling around United States: hostel, Airbnb, and hotel. Hostel is the cheapest and also a place to meet people. Most of time, you book a shared room and meet people from different cities or countries. Airbnb is a new style of accommodation which became pretty famous these years. The host may have extra space in his or her house, then he or she let the traveler to stay in that place. All the procedure was done on Airbnb website or mobile application, which means that you can do the reservation easily by simply clicks. For hotel, I believe most people know what it is, and it’s the most expensive option comparing to others.