Oddly enough, listening to depressing music, it helps me get it out and get over it. When it's not so freezing cold; taking a walk, watching the clouds or stars. Working out is suppose to make you feel better, but if you are sad, it is hard to motivate yourself. Dressing up and looking really nice for no reason. Being around friends and family. Reminding myself that it is only temporary. Setting goals to improve my life, and taking the steps towards them. And I start with small, achievable goals, and little steps. Oh, and how can I forget, hugs. A good hug from a friend or loved one does a lot, and I am happy to provide hugs for those that need them.
Sometimes I am thankful for sadness, for how can you know and appreciate real joy, if you have not known real sorrow. I worry about closing myself off to the sadness and becoming numb, mostly because of the environment I work in. So, when I have had a particularly hard stretch at work and feel like I have closed myself off emotionally, I am actually relieved when feelings start creeping in.