ok, i have never posted in this topic before, and have never dieted before. i am 5 foot 8 and guessing i weigh about 11-11.5 stones. i am a size 12-14. i was always a size 6-8 before having children, and although i acknowledge that is way too small, i would like to get down to a comfortable 10-12. i have a mummy tummy, which after 5 children i expect, but i would like to tone it up a bit. i do a lot of walking, but not much other exercise. i cant run due to an old knee injury and arthritis. i am also a smoker although trying to stop. what can i do, sensibly and easily to lose weight and tone up please?