For me there are different types of work-related stress and different people cope differently. I generally see stress as good stress or bad stress, and what type of stress exists in a work environment is usually a function of the prevailing culture in the organisation, which in turn depends on management.
Good stress is usually self-imposed, and usually comes from wanting to achieve something, not because you have to, but because you want to. On the other hand, bad stress stems from fear or apprehension or insecurity - for instance, feeling you must do something to impress an oppresive boss or to keep a big client happy.
For me good management is about creating a work environment where positive stress dominates. Individuals in such an environment would achieve more - both in terms of quality and quantity.
Personally if I start to feel stressed in a job, I know there is something wrong - either with the way I see things at the time or the environment. And if I can't do something to change that situation I generally quit as I value my sanity far more than any job, business deal or money.
So @tommyjune my way of dealing with stress is to try and prevent it in the first place - both for myself and for the people that work with/for me.