Until I turned 40 I was always quite slim. I have put on some weight since then(I'm 5'4 and about 9st) My thighs, bum & tum are particular problems & I'm very unhappy with the cellulite I've developed. I work full time (teacher so work in evenings too) & I'm busy with my kids too. I can't fit in the gym. I want to change my diet to shift some weight. What can I do to make a difference?