My wife and I have been members of our gym for a year. Our first personal trainer wasn't very helpful and we really did not learn much from him. I've been doing most of my own research on workouts and I've become trainer for us both. My wife wants to lose fat and tone and I want to lose fat and add muscle. We workout 3 days a week (MWF) and on those days we workout with weights about 45 minutes - 1 hour and about 25-30 minutes of cardio after (treadmill or bike). Here's where the confusion sets in. We don't know how much we should be lifting. For each of my weight bearing exercises, I do 3 sets of 10 reps each, adding weight for the 2nd and 3rd set which reduces the number of reps for my 2nd and 3rd set to about 6-8. My wife does somewhere in between that. She performs 2 sets of weight bearing exercises of about 10-12 reps each, adding more weight on the 2nd set. How does this sound to you ? We have both lost about 10 lbs each. We could have lost more, but we are struggling to get our bad eating habits under control. Is she doing the correct weight bearing sets for toning. Should she add more reps and reduce weight. Is my routine going to get me big ? I'm seeing results, but I don't know how big I should have gotten in the past year ? Can we lose fat while doing weights, or should we concentrate on mainly cardio for now ? I know this is a lot, but please help us.