Information detrius: scraps of paper on my desk that need to somehow be filed, either in my brain or electronically. Like the email address of a contact in business - but I don't have his name, just his email, and I don't want to lose it. Or the post-it of a list of people I want to send a batch-email to, and the sheet of paper that has a bunch of stuff on it crossed off...except for a few things that I don't want to forget. Desk detrius, information detrius; the flotsam of Keep-Track stuff we all have.