Jott
I really like this service. It takes less than five minutes set it up. When it’s done, you call a 1-800 number whenever you want and start talking, and then a few minutes later you get an email with a surprisingly accurate transcription of what you just said.
You could use it to send messages to other people too, but I like it as a note-to-self reminder. I love the idea of a voice recorder but I prefer to see my ideas organized in text.