There's a good trick however if you want to stop doing that: work with someone else, with each one being able to look at the other's monitor. Even better: do that with people you actually hired. I can guarantee you won't be spending any minute of your time procrastinating.
This trick works even when the other person is remote: for the last 6 weeks, I have spent about 25 or 30 hours a week using VNC to watch someone 11 time zones away while he in turn watches me. While we watch each other, we spend almost no time procrastinating.
We both work from home, do not have TV sets in our homes, and do almost all of our procrastination on the internet.
Both of us would like to increase the number of people using this trick, so if you are interested in trying this way of using VNC to reduce procrastination, write to email@example.com.
I still have my timer I used through college except I did 45 minutes on 15 minutes off. It works amazingly well for things that you don't want to be working on. Now that I work on mostly interesting problems the hardest part is getting into the zone, but once I'm there I can work for hours.