I just do 50 mins of cardio, 4 times a week.
This consists of 20 mins on the treadmill at a 3/4 pace followed by 30 mins on the cross-trainer at a medium-high resistance. Alternatively I start with the cross-trainer for 30 mins then do 20 mins on the bike at a pretty high resistance.
Either workout, I'm always left looking like I've just had a shower with my clothes on afterwards.
And I try not to snack between meals.