I'll tell you what worked for me:
A) When my second child was 6 months old and I still had 30 + pounds to lose, I became desperate and took up running. I was NOT a runner...(the first time around my block I got dizzy, saw stars, and tasted blood)...but I ended up finding the Couch-5K plan on-line which starts out VERY slow and it's VERY easy (although difficult at first if you're not in shape)--but by "very easy" I mean doable--as opposed to my initial run around the block! :-) If you start this plan (which I highly recommend!!--by the way it only takes 30 minutes, three times/week!) then make sure you believe in yourself. You can do it!
B) NO EATING AFTER 7 pm!!!!!! (Unless you're breastfeeding and STARVING then have something healthy like an apple or orange juice...but no empty calories.)
C) No fried food.
D) Drink 2-3 Nalgene bottles full of water/day.
E) Eat breakfast EVERY day, even if you're not hungry. It jump-starts your metabolism and gets your body out of "starvation" mode. If you're not a breakfast person, at least force down a banana.
Hope this helps!!!! :-)
(I lost 40 pounds and have kept it off!)