stress eaters!

Finding something low cal to munch on while stressed or depressed is the wrong answer. You need to work through those feelings not try and cover them up or ignore them otherwise the problem doesn't go away. I don't know your story but it may be a contributing factor to your size and if you don't fix it you aren't going to maintain any weight loss. Sorry if that sounds blunt, I'm trying to be helpful.

Along the lines of stress eating (that's how I got where I am), you really should try to find ways to find comfort without the food. I found with myself that I'm only after certain things when I want to stress eat, resulting in me eating the healthy things (a lot of them) and then either not feeling satisfied and just as many calories up, or just caving and eating what I wanted and still being many calories over.
Ideally exercise is great for stress relief, exercises like yoga can help calm/de-stress you, or high intensity workouts like kickboxing can give you a way to physically take the stress out on your imaginary partner. Other hobbies can help to distract you also- they don't have to be physical.
If all else fails and you need food, the best way I've found is to either get a small bit of what you really want or replace something high cal with something similar but lower cal:
Premium ice cream-> a glass of skim milk with a tablespoon of chocolate sauce (even better sugar free)
Chips -> 1 serving Special K cracker chips
Cake -> Fiber one fudge brownie