First, a standing desk. I always get fat when I'm sitting down for too long.
Then, as soon as you wake up in the morning, eat scrambled egg whites, a can of beans, with a splash of olive oil. Take a multivitamin, and a garlic pill. Drink a lot of water.
Then workout, repeating a circuit of exercises for 25 minutes. I do 4-day splits, (out of habit, mostly) so 4 days in a row I'll exercise, and on the 5th, I rest. I just steal circuits from the 'net every two weeks or so. The key is intensity. The more intense you make the workout, the better you'll do.
Here's a sample circuit:
Pullups x 5 | Ab Wheel Rollout x 10 | Pushups x 15 | Squats x 20 | (no rest between circuits)
The rest of the day, I eat as much as I want of meats(yum), vegetables, and legumes, and I drink a lot of water. I pig out when I'm out with friends, which is every once in a while. Opt for liquor instead of beer, though.
Do you know how many calories you ingest (eat and drink!) in a day? If you eat out, or prepared foods, you could easily be getting five times what's recommended. Less in, less on.
If you're not really food-fixated you can drop pounds rapidly just by supplying yourself with better hacker chow. If you're food fixated I hear learning to cook (spice) is really pretty easy. The bar is low, any positive change helps, and it keeps paying off.
I've since gone vegetarian once I learned how possible it is. (By choice. Ick, would you lick a cow?) Now I've almost got to work at getting enough calories but for once I feel full after a healthfully portioned meal.