I use one of those little journal-books (some with magnetic clasp) that you can get at most craft stores or Walmarts. I just keep it in pen, writing: date: reading, action taken. Or Event. I keep it in the same leopard print chest that holds all my test kits and supplements. It lives in the kitchen where I do the testing. I'm not the sort that can remember numbers long enough to get to the computer, and I don't want water near my keyboard. These programs, however, sound intriguing. What do they do? I visited the site, but they were singularly uninformative.