Personal style and concepts

Some of the built-in furniture remains, while other restorations have included replacement pieces created using his plans. His Prairie houses use themed, coordinated design elements (often based on plant forms) that are repeated in windows, carpets and other fittings. He made innovative use of new building materials such as precast concrete blocks, glass bricks and zinc cames (instead of the traditional lead) for his leadlight windows, and he famously used Pyrex glass tubing as a major element in the Johnson Wax Headquarters. Wright was also one of the first architects to design and install custom-made electric light fittings, including some of the very first electric floor lamps, and his very early use of the then-novel spherical glass lampshade (a design previously not possible due to the physical restrictions of gas lighting).
As Wright's career progressed, so did the mechanization of the glass industry. Wright fully embraced glass in his designs and found that it fit well into his philosophy of organic architecture. Glass allowed for interaction and viewing of the outdoors while still protecting from the elements. In 1928, Wright wrote an essay on glass in which he compared it to the mirrors of nature: lakes, rivers and ponds. One of Wright's earliest uses of glass in his works was to string panes of glass along whole walls in an attempt to create light screens to join together solid walls. By utilizing this large amount of glass, Wright sought to achieve a balance between the lightness and airiness of the glass and the solid, hard walls. Arguably, Wright's best-known art glass is that of the Prairie style. The simple geometric shapes that yield to very ornate and intricate windows represent some of the most integral ornamentation of his career. Wright responded to the transformation of domestic life that occurred at the turn of the 20th century, when servants became less prominent or completely absent from most American households, by developing homes with progressively more open plans. This allowed the woman of the house to work in her 'workspace', as he often called the kitchen, yet keep track of and be available for the children and/or guests in the dining room. Much of modern architecture, including the early work of Mies van der Rohe, can be traced back to Wright's innovative work.
Wright also designed some of his own clothing. His fashion sense was unique, and he usually wore expensive suits, flowing neckties, and capes. Wright drove a custom yellow 'raceabout' in the Prairie years, a red Cord convertible in the 1930s, and a famously customized 1940 Lincoln for many years. He earned many speeding tickets in each of his vehicles.^{[citation needed]}
Wright strongly believed in individualism and did not affiliate with the American Institute of Architects during his career, going so far as to call the organization "a harbor of refuge for the incompetent," and "a form of refined gangsterism." When an associate referred to him as "an old amateur" Wright confirmed, "I am the oldest."