Walking on the moors is where I go to relieve stress. Nothing better that I know. Once after an awful week at work I packed my climbing gear, walked to the heart of the moor and abseiled down a tor there. Options:- forget work and focus on what I was doing there and then, or fall off and die. Worked a treat for me.
Happily I am now retired, so very little stress in my life and far more dress, in my life. Though dressing has always helped me feel content and at one with who I am, I don't think it directly helps me personally with stress.