Go for a run. Obviously regular exercise is essential to generally staying healthy and on top of your game, but it's also the best immediate stress relief. Going for a run, for example, at the end of a stressful day not only releases endorphins associated with exercise, it also gives you a chance to get some vitamin D, clear your head and appreciate nature, listen to some music or chat with a friend.
Food, by adding the right fuel in your body. Stress and poor diet go hand in hand. If you're stressed, you're probably busy, so takeaways or comfort-food are a logical option. Remember that food is your fuel! Without the right petrol your car won't run smoothly. Likewise, without the right food, you're body (and mind) can't cope with stress.
Meditation Meditation is a word that often gets an instant dismissal response, but it needn't. Meditation doesn't have to be ritualistic, with candles, and specific poses. Meditation can be as simple as taking 5 minutes in the morning to breath deeply, get some oxygen into your body and prepare for the day ahead. Stress goes hand in hand with poor sleep ; Now, meditation can be as simple as lying down in bed, and instead of getting nowhere and staying awake going over the problems of the day, simply focus on your breathing, think about how your legs feel, how your torso feels, how your head feels (put on some relaxing music if you like.
Read a good book. Reading is another good way to clear your mind of stressful thoughts and let your imagination run wild. Depending on what kind of reader you are, reading can also be a great way to get to sleep - poor sleep is a major result of and cause of stress.