I do a few things to combat stress, certainly something we all face during these uncertain times -
First of all, I take Wellbutrin. Been taking it for years and have resigned myself to the fact that I'll probably be on it forever. I have chronic clinical depression...and a bunch of additional stress doesn't help. So I make sure and take that pill.
I walk/jog on the treadmill - and this is not strolling, I'm talking about. I intentionally try to exhaust myself, to work the stress out of my body. I'm working my way back into a serious running program...mostly because when I was younger, running really helped with stress and depression. Nothing like letting those endorphins loose to make you feel better. Runner's high? It's for real.
I try to eat healthier. I'm not sure how much this helps with the actual stress, but it helps me avoid heartburn, which I tend to get more often when I'm under alot of stress. Plus...hey...any little bit helps, right?
I try to get out and get some sunlight, even if it's just for a little while. I don't have SADS or anything...but light is good, I think.
I make sure to get enough sleep. If my brain won't turn off because of worries and stresses, after all of the above steps, I take Tylenol PM if I have to. This might not be the best option...but not sleeping is certainly not going to help matters.
Finally, I try to get lost in something - a TV show I have on DVD that I really love (good word,
Holdfast - 'comfort TV' - I have a few shows like that - NCIS is one....LOST is another. Shows were I REALLY like the cast so much that simply watching these people makes me feel better - like 'my world may be going to hell in a handbasket...but Leroy Jethro Gibbs will never change'

Shows like this give me a feeling of 'stability' for some odd reason...), a good book (if I can concentrate) or playing The Sims. I might even go to a matinee movie to get my mind off things. The key is to find
something that will take my mind off things for at least a couple of hours a day.