Abstract
From recent philosophy of technology emerges the need for an ethical assessment of the ordinary use of technological devices, in particular telephones, computers, and all kind of digital artifacts. The usual method of academic ethics, which is a top-down deduction starting with metaethics and ending in applied ethics, appears to be largely unproductive for this task. It provides 'ideal' advice, that is to say formal and often sterile. As in the opposition between 'ordinary language' philosophy and 'ideal language' philosophy, the ordinary requires attention and an ethical investigation of the complex and pervasive use of everyday technological devices. Some examples indicate how a bottom-up reinvention of the ethics of technology can help in numerous techno-philosophical predicaments, including ethical sustainability.