Simply try to eat more healthy. If you feel like snacking, cut up an apple and snack that. I find that fruit tastes a lot better and goes longer when I cut it nicely and put it in a bowl and eat it with a fork.
Have a look at a low GI diet, my doctor has recommended it for me, and I am trying to slip into it right now. I have good and bad days, the good days getting more, and on those I lose weight quite easily without trying very hard at all.