I worked out for 3 hours in a row tonight - I did Pilates, then Zumba (an hour of dancing) and then Body Pump (weight lifting) for an hour. It felt great & I feel really happy about this & hope to do this more often. I am however, obviously pushing the limits of my fitness as I got a bit close to throwing up in the third hour 2 times, but I didn't - and I could tell it was just from over-exertion so I wasn't worried.. I just slowed down until I felt better again. I'm not really sore, but expect I might be moreso tomorrow. We'll see.