I used my sons as the workout.  Moms don't have time for a normal workout, but lifting a baby and pushing up and down (like push-ups), tossing the baby in the air (once bigger).  I played up and over with my special needs son till he was 100 lbs (should've stopped sooner).  We would face each other holding hands.  He would jump as I lifted and he would land legs wrapped around my waste.  I would grab his legs and lift him over my shoulder and lower him down my back head hanging down.  We would reach through my legs and pull  him through back to standing.  He loved it and I got a great workout.