Silly stretch idea
Seems to me that most people want to stretch more frequently and/or regularly. I know I do. So, how about this: A website where you can sign up and enter your IM contact information (Yahoo!, MSN, AIM, etc) along with a schedule. The code on the servers sends out a reminder, along with a link. When you go to the link, you’re rewarded in some way (perhaps with a joke, or something similar), and it also makes a log entry for your personal use. The site could have suggested stretches and schedules that you could select instead of entering your own.
The rewards would need to have no value, of course, because otherwise the system would be abused for profit (It might still be abused, but who cares if someone fakes a stretching record?). Jokes are the first thing that come to mind, but I guess it could be almost anything with no value.
Of course, it wouldn’t be a website without ads, so you’d have ads for local occupational therapists and related professionals.