Steven Johnson:
I’ve been maintaining a single document where I keep all my hunches (…) There’s no organizing principle to it, no taxonomy—just a chronological list of semi-random ideas that I’ve managed to capture before I forgot them. I call it the spark file.
I’ve been doing the same think - one for work, one for personal stuff (like the blog). It’s my primary use case for iA Writer, since it syncs between my devices nicely.
