I'm also tee-total and it's about finding what works for you. I wouldn't say I actually get stressed per se, but to unwind after work for me it's a bath, gingerbread, drawing, writing, watching a film, spending time with DH, cooking, walking, cycling etc etc. It depends on my mood. I think once you break the cycle of de-stress=alcohol, you find plenty of things that can otherwise occupy you.