I'm finding more and more that email is the perfect place for me to keep notes in. I can access my email wherever I am -- webmail, IMAP, iPhone, etc -- and it is always on. I don't need to be at a specific computer to use a specific note-taking application. I don't have to have a browser to access a specific website to keep notes on. My notes are always with me in my email. One other benefit is built-in search (at least everywhere except the iPhone), so I can find whatever I need in my email. I get instant backup since I forward a copy of my email to my Yahoo! Mail account. How do you keep your notes? Paper and pad? Digitally? Use a specific application?