At the moment I am only managing 3 workouts per week due to various circumstances, so I make them count. I workout intensely, moving swiftly in my weight training time from exercise to exercise without too much downtime.
I do 45-60 mins treadmill cardio, followed by 1 and 1/2 hours of weights work and core training. At the end of that, I am done, ready to leave the gym and head home for dinner!
I know some "experts" say that any exercise after the first hour is redundant. However, my current fitness and lower body definition is proof that this is not necessarily so. It depends upon how you use that extra time beyond the first 60 mins!
We all have a certain amount of time available to us. I think I get the mst out of my fitness time. The other days are devoted to the family, housework, reading and drinking coffee, etc. It's a balance that works for me.
Clare