We've all had those days. You sit down at your desk and, before you know it, several hours have gone by, and you haven't got around to any of the tasks you had on your to-do list. Where did the time go?
If you want to take back some control over your time, the first thing to do is keep track of all the tasks that somehow crept into your day without you noticing them. Keep a notebook for a couple of weeks, and you'll get a good sense of what you've been spending your time on.
Once you've got a sense of how you're currently spending your time, you can start making plans for how you want to spend it in future. What's a worthwhile use of your time, and what's not? How can you reprioritise your time to make sure more of it is productive?