Congrats on being back...I have been re-starting induction for 3 weeks now since a vacation binge! If you want to prevent excess skin from sagging you should do some light cardio and strength training. It doesn't have to be hard...go for a 30 minute walk around the block and use some 5 lb weights to do some exercises. Also, squats and lunges are hard at first but they really do work! Only do as many reps as you can at first and then build up your stamina. Go to self.com or shape.com they have great free step by step videos on different strength training moves.