"Overwhelmedness"

Sometimes I feel overwhelmed. Every now and then the demands of my personal life, my work life, and my academic life collide in a way that is decidedly not very pretty. My wife is amazing at helping me realize when I've said 'yes' to too many things and haven't focused on the things that are really important. I imagine that educators must feel overwhelmed quite often. Actually, I can't see how they don't feel overwhelmed continually! I'm curious to learn what strategies that teachers employ to help combat stress, burn-out, and frustration.