Weights & Cardio.
Free-weights (dumb-bells and bench press) 2 - 3 times per week (two days off between lifts) and 1 hour a day everday on the exercise bike (two - 30 minute sessions). I love walking and have been going on long walks everyday (2 hours total) for several months now but since this nasty weather has kicked in (surprize, surprize) I've just been hitting the stationary bike and it gives a Hell of a workout!
*sweatin' like a pig*
Now, the weights I lift are light-ass baby weights because I'm not trying to get big, I just want to maintain strength and as much lean tissue as possible so that my resting metabolic rate is as high as it can be to burn more calories when I'm not active (during sleep for example). It also helps the cardio along in weight loss/calorie burn.
I have to say though (and probably much to the dismay of many here) that when I quit drinking, the weight just fell off and pretty quick too! And that was before I made any major dietary changes or started working out daily. I've found that (for me anyway) if you're serious about weight loss/fitness then you have to make a decision whether or not you're gonna continue drinking because you can't have both. Now, that's not to say that you can't still drink in moderation but "getting drunk" regularly will kill your fitness goals both calorically AND via hangovers! (I've NEVER worked out hungover and I don't think many people would want to either!)
So, that's my two bright shiny copper coins into this pond of conversation.