You must sign out all department-owned equipment. The sign-out folder is located behind the Administrative Associate's (Gabriela Magana, gmagana at stanford dot edu) desk in the Linguistics Department's main office (460-127). You can reserve equipment (e.g., the LCD projector) in advance with the Administrative Associate so as to be sure it will be available for a certain time during the quarter. This is important, for example, if you are counting on particular equipment for a section at a popular time in a room without a smart panel.