Time is money but I can't help myself sometimes and procrastinate. I tend to push things back until the deadline gets close. I know it's something that I should fix but it just happens. When I do finish things early, I feel much more relaxed and I do enjoy those times.
I do it too, but then have been caught out so many times by the "unexpected" interruption that stops me. So now, I try to get it done early. I work well under some time pressure normally though, so it is a catch-22.