I'm either doing something, or not doing it. I don't convince myself that I'll get around to shit that I know I won't get around to. The only things I leave for later is something like folding laundry, which I'll do when I'm on the phone or watching a basketball game. Or taking shirts to the dry cleaner, which I'll do two days before I absolutely have to in order to wear them to the next wedding. I don't have any real need to fill my free time with anything "productive". If I wanted to be productive, I'd work harder at work.