If you conduct your business standing up, you will be ready to move on. Close your door once in a while. Lets you re answering machine pick up your phone calls. After an hour or two, return your messages. When you are on the phone, keep the call short.
Nothing is worth doing perfectly.
For the additional time that it takes, perfection may not be worth achieving. Spend more time in planning. The time you spend planning how to do something may make it possible to spend less time doing it. Make certain you understand the directions. Don t waste time, re-doing something.