Most offices will call you the day before your visit and send the card. Then again if you had a beeping card, you'd probably lose it and go crazy trying to find the blasted thing in your home to turn off the beeping sound. Or create a programmable watch (already has the date and time) that beeps you for your appointments ... oh yeah, thats been invented too ... hhmmmmmm

Yes I have a watch with an alarm on it. It is set to go off when it is time for my mrdication. And the phone calls I've missed many times because I was not home. Maybe I need to wear two or three watches.;)

Sometimes we complicate the obvious solutions. Just ask yourself, How would we have solved this problem before the invention of electricity? We would have written it down on a paper calendar hanging in the kitchen.

Yes, you are right of course. And I know on the date of my appointment, it made a noise to get my attention, But I may have been to far away to hear it. Or I just didn't recignise the sound it made.

Nice idea. Can't be too hard to create such a device, but as Michael suggests, you might forget it.

How about sending a digital appointment to a Palm top instead of writing it on a card? I often write my appointments into my Palm manually when at the Dentist's/Optom's, but "beaming" it (either via bluetooth or infrared) or SMS'ng appointments to mobile phones would certainly be handy. For those that carry mobile/cell phones this could work well; for those a little technologically averse how about a watch which supported bluetooth receiving of appointments?

It does mean "upgrading" your watch, but it is something that's not likely to be left behind.