Abstract: An apparatus is disclosed for reminding a user of certain desired activity and for enforcing the performance of such activity. A clock generates clock pulses and a mechanism, such as a magnetic switch and magnet, is provided for detecting the performance of the desired activity and generating a detection signal when such activity is performed. A logic array is responsive to the clock pulses and the detection signal for selectively generating an electric alarm signal. In one form, the logic array is operable in response to the clock pulses to distinguish between at least two distinct time periods defined as an active time period and a dormant time period, and during the active time period, the logic array is operable to generate an electric alarm signal for a selected period of time in response to the absence of the detection signal. In the dormant period, the logic array will not generate the electric alarm signal regardless of the presence or absence of the detection signal.