Coworking is an arrangement in which workers of different companies share an office space, allowing cost savings and convenience through the use of common infrastructure, such as equipment, utilities, and receptionist and custodial services, and in some cases refreshments and parcel acceptance services. It is attractive to independent contractors, independent scientists, telecommuting and work-at-home professionals, and people who travel frequently. Additionally, coworking helps workers avoid the feeling of isolation they may experience while telecommuting, traveling, or working at home alone, and eliminate distractions. Most coworking spaces charge membership dues.