There are many types of stress relief and Jenna has certainly named some good ones with the deep breathing and progressive muscle relaxation.
If you are of a spiritual nature, here's another, provided by the Mayo Clinic:
http://www.soberrecovery.com/forums/...onnection.html (Spirituality and Stress Relief: Make the Connection)
And I just found this on music therapy. It looks interesting!
http://www.revolutionhealth.com/cond.../music-therapy
Meditation is a long known help for stress:
http://www.revolutionhealth.com/cond...itation-stress
As is relaxation techniques:
http://www.revolutionhealth.com/cond...ion-techniques
And finally, getting a grip on our sources of stress can help reduce it, simply by understanding it. Take a look here:
http://www.revolutionhealth.com/cond...sources-stress
I hope these help and don't overwhelm you. I got carried away!
But, there is much good information there and I know I will go back and review it.
Shalom!