There are a wide range of working conditions and employment opportunities within interior design. Large and tiny corporations often hire interior designers as employees on regular working hours. Designers for smaller firms usually work on a contract or per-job basis. Self-employed designers, which make up 26% of interior designers,^[2] usually work the most hours. Interior designers often work under stress to meet deadlines, stay on budget, and meet clients' needs. In some cases, licensed professionals review the work and sign it before submitting the design for approval by clients or construction permitting. The need for licensed review and signature varies by locality and relevant legislation, and scope of work. Their work tends to involve a great deal of traveling to visit different locations, studios, or client's homes and offices. Usually this work is done under the supervision of a design professional such as an Architect. With the aid of recent technology, the process of contacting clients and communicating design alternatives has become easier and requires less travel. Some argue that virtual makeovers have revolutionized interior design from a customer perspective, making the design process more interactive and exciting, in a relatively technological but labor-intensive environment