When I get stressed I go outside the house and walk around if weather permits or turn off all electronics. If you are an emotional eater I would leave the house all together get away from, meet up with a friend, drive around, or walk around a park.
Decide on a new hobby, write out a list of "fun" goals you set, making sure they are realistic goals, this will make it easier to achieve or keep a journal or write poems. Sometimes writing things down will help with stress. My unrealistic goal is if I lose a certain amount of weight I will treat myself to a cheap cruise...just not the cruise line that's been in the news lately.
or I would like to take up kickboxing.