I'm learning to schedule better.
One of the things I've learned is to build in enough space to compete a task and then add a little padding. I should almost never be surprised by something taking longer than I thought, and often be surprised by something taking a shorter amount of time.
What should I do with those extra scraps of time?
OK, maybe they're just 5 or 10 extra minutes here or there. But when you're not counting on them, they're heavenly. My first reaction is the correct one: do nothing and enjoy the moment. But sometimes you really feel like doing something.
Mike Williams, of Zappos.com, came up with his own chart of small practices he performs throughout the day. Maybe this could be a good guide on how to handle unexpected white space as well (if you really must do something):
I still prefer #5.