[nathcd]

I agree that pen and paper is the best way to keep notes, logs, etc., and I'd add that I think the second best way is text files. I use text files for my todo list, calendar, journal, and for other similar needs.

In my experience the simplicity of these methods dramatically lowers the cognitive barriers in motivating oneself to keep notes and logs. You'll never have to worry about migrating between platforms or TextFiles, Inc. going out of business. And you can use your own processing tools for editing, scripting, syncing and so on.