Taking some quite time for yourself can often reduce stress. Find a place at home and at work where you can get away from everyone and take a few minutes for yourself. You can practice any relaxation technique or simply spend the time thinking through a problematic situation. Use the time to do whatever will help you to relax. There is a variety of relaxation media on the market in the form of cassettes, CD's, videos and even computer software.
Mental visualization is a powerful technique.
The basic technique of visualization is to put yourself in a relaxed position, breathe deeply and rhythmically and close your eyes. Then, in detail, imagine in your mind's eye a peaceful place or any surroundings that are pleasant and claming to you. While imagining this place, focus on breathing deeply and releasing tension from your entire body. Visualization can also be used to play out a situation from the beginning to its positive end. This is one of the variations used by competitive athletes.