If you work in an office, chances are you're freezing some days and burning up on others, says Adele Peters at Fast Company. But what if "instead of having to wear a sweater in the office in the summer," you had a chair that kept you the perfect temperature? The Hyperchair, developed by researchers at the University of California, Berkeley, works like a heated car seat, using heating tape woven into the fabric to warm the sitter. (Courtesy image) "If someone's too hot, strategically placed fans wick body heat away." The temperature can be adjusted via a button on the chair's side or through a smartphone app.