If you're lucky enough to have a door you can start letting people know that closing the door means you're trying to get work done. Another tactic is to have "

If you're lucky enough to have a door you can start letting people know that closing the door means you're trying to get work done. Another tactic is to have "office hours" on your schedule where everyone knows they can drop by to get that stuff out of the way. One thing I used to do was arrange to work at home two days a week. It was amazing how much more productive I was with no one dropping in every fifteen minutes.