Core-Stability - if you don't have a medicine ball you can do these exercises using 2 small dumbells or even 2 weighted items from your kitchen that fit your hands comfortably. Just don't throw them at the wall! :o)
Pilates Exercises for a Tighter Tummy. I do this every other day and after having 3 boys, can say this is truly working. I have done this for a month and lost 2 inches off my waist. I'm now in a size 8 and still shrinking. I use a 8 lb medicine ball and love it!!!