How do you record your thoughts?
warp: I have a fairly large paper notebook in my bag which is great for sketching interface mockups and taking related notes.When I'm at a computer I use a password protected server-side tiddlywiki (pytw).  But that's mostly a place to get stuff out of my head and out of my INBOX (think GTD).  I don't think these ideas are particularly good or valuable, and rarely need to search through them.  Having it accessible from anywhere over the internet is useful, though I mostly use it from work and home.