card can be pressed through the apertures from the inside to the outside of the clamshell case the electronic alarm device 12 carried by the second half of the clamshell case comprises an audio alarm means a reset button 26 for turning off the audio alarm means and resetting the audio alarm to turn on at a subsequent time a timer and a visual time display means 28 to display the output from the timer the alarm means is preferably designed so that the reset button turns off the audio alarm and automatically resets the alarm to go off 24 hours later if desired the alarm can go off with an alarm signal followed by periodic reminder signals until the reset button is pressed in one embodiment of the invention a second half 16 of the clamshell case has a concave inner surface 30 and the electronic alarm device comprises an electronics case 32 mounted to the concave inner surface of the second half of the case the second half of the case further has a first aperture 34 for locating the visual time display means and a second aperture 36 for locating the reset button an lcd device makes a highly suitable visual time display means a plurality of control buttons 38 for controlling the timing device are preferably.