How can someone with bipolar disorder reduce the impact of unavoidable work-related stress?

People who have bipolar disorder need a great deal of stability in order to maintain their health. They have to go to bed at the same, early time each night. They need regular schedules. They need exercise regularly. They need to eat right. They need to avoid very stressful situations.

This last is not always under their control. Especially in some jobs. There can be huge stress at some times, and a need to work long hours or stay up late—in short, all the things that are very bad for them. But it’s unavoidable. You have to have money to put food in the cupboard and a roof over your head, and you don’t always have a choice of jobs. Often you have to take what you can get.

I’m looking for ideas. If work-related stress is unavoidable, what can someone with bipolar disorder do to minimize the effects of that stress?