Keep your ducks in a row
In other words, get organized. In your profession, organization is a must. Hopefully, you have an administrative assistant who can handle most of the organizational aspects of your job. However, if work for a smaller company, you might have to act as your own secretary. If this is the case, you need to be fastidious in organization. Make sure that the items in your "in box" get finished and that they get finished on time. Make sure that the items in your "out box" get out. That means they are delivered to the right people and that deadlines are always met.
Good organization also entails having a plan for each day. If things are going to get done, you will need an outline of meetings and conference calls as well as a list of things that need to be accomplished. When you outline your day, block off times for completing each item on your list.

