the hotmail index is what i use to measure how busy i am at work. it means what time i actually get to check my email (hotmail is also interchangeable with facebook).
for the past few days it's been around 4.30pm, if at all, and today it was none. maybe a whole week without hotmail or facebook is possible, how liberating!
it's a good feeling, to be so busy at work that the last thing on your mind is checking personal emails - even if they only ever seem to consist of facebook updates, newsletters and michi girl.