So for me it's totally about focusing. When I get stressed - which is usually at work - I find myself unable to focus on the task at hand and I sort of jump from thing to thing - and mostly things unrelated to what I should/need to be doing. I find that getting up and walking around, outside if I can, really helps with that kind of stress. In that situation, I don't usually look for food (and lately we've been down on sweets at work, and up on fruit and pretzels

)
Emotional stress - usually at home, of course - is much more apt to make me want to eat. Exercise - if I can make myself do it - helps. Again, taking a walk may be enough. I have had some success with Anne's techniques, though writing down what to do instead of eating is a great idea, as is Amanda's of putting out the snacks (or at least having a list).
Though it's a bit OT, boredom is much more of a trigger for me, and I use many of the same techniques.
Like many of us I was brought up in a family that used food to celebrate, food as reward, food when "things" aren't going well...... It's hard to overcome that little voice that's been in your head for the last 60+ years.
