A very handy pill timer that I have been using for several years is available from Maxi-Aids. Phone # 1 (800) 522-6294. It is described on page 130 of their large catalog for 2000/2001 (they also publish a small catalog). It is called a "medicine reminder" It measures 5" x 1-5/8" x 1/4" and has a pocket clip like a pen.It may be set for every or any half hour. The only drawback is the timer is limited to sound only from 8 am to 11:30 pm. Catalog # 63222 $9.95 Batteries 2/pack #0389 $2.49 Erv Birzer