I might be late, but I just spotted this awesome graphic and post from Babble featuring 5 exercises you can do with your baby. I recall doing plenty of these after having my first child and being cleared to work out because I was so anxious to start peeling off the weight. These exercises are great for the woman who cannot get to the gym.
I also highly recommend doing Gaiam‘s Pilates for Weightloss ($11.99) which I did religiously every day while breastfeeding and lost an average of 2 lbs per week steadily. I was really shocked that the weight peeled off like that without me really altering my eating. Great stuff! Click HERE to see more details about the moves below.