I went with portion control and exercise. (I really hate the word diet)
I just minded how much I ate, and started hitting the gym religiously every single workday before work for 40 minutes at the very least, rain or shine.
So far I have lost 32 lbs and still loosing. I bought my dress a size down from where I was back in February... I am proud to say I already fit into it

I am hoping to keep on going down.
DH joins me at the gym every day (it is empty at 6 a.m.) I watch movies on my iPod touch or listen to music, he watches the TV or listens to music. Working out early also gives me tons of energy and puts me on a great mood for the day. It also helps keep my stress levels down.
We use the wii EA Sports Active as well to tone our upper body (which in my case needs a lot of work), I plan on using it more and more as we get closer to the big day. So far so good!
Oh yeah, we have started dance lessons as well and we practice a lot since it is a lot of fun!

That can be quite a work out and we do it often as well
PS: Another tip I got from my granny, drink water! I take two big water jugs to work and drink them during the work day, I also replenish fluids while working out. Since I don't like plain water THAT much I just dilute a tiny bit of 100% cranberry juice (no sugar added, no juice cocktail) into the water for taste and it is great!