I'll add another $.02 here.

I think eating some fat might help. I know it's counter-intuitive. But it's clear that fat takes a longer time to digest, and in the meantime your stomach doesn't start screaming for more food. For example, if I have an egg along with the rest of my breakfast (big bowl of Shreddies cereal with 1% milk, plus one glass of apple-orange juice, plus coffee), I'm fine until noon or even past that. If I don't and have a couple pieces of toast or a muffin or the like in its place, I'm starving by 10:30 or 11am. The extra fat and protein keep my inners busy for a while...

So that piece of cheese, that egg, or a bowl of low-fat instead of no-fat yogourt or glass of milk might be helpful in preventing you from snacking all the time. And if you keep it in reasonable proportions, it will not impair your weight loss. Also remember that the low-fat stuff (especially yogourt) usually contains a lot more sugar to make it taste better (because fat enhances the taste, hence no fat = often bland, in industrial products at least, which means most of what we eat).