Forget the crunches and just buy larger clothing. Meditation is an effective way to manage a stressful situation. This can help you outlast any accountant with a chip on his shoulder. Use food to manage stress. A proper diet is and always has been helpful, but it's not useful for stress management.
Food can be a godsend in stressful situations, however especially when thrown with enough velocity.
Keep over-ripe tomatoes on the dash and at the ready for those challenging highway situations. A smashed watermelon can add just the right amount of color to a slow-moving board meeting. And month-old bananas can defuse the most stressful IRS audit. Come up with ways to exercise while at work. By thinking creatively you can calm down and be aerobic at the same time.