I'm so sceptical of abdominal exercises because they've never worked for me. But I've lost my post-birth weight slowly and sustainably and have ended up skinnier than I was before, but with a great big horrible tummy bulge. Do I just need to grit my teeth and stick at it? How many a day do I have to do, and how long before I see a difference? I need solid first-hand experience from real people to give me a kick up the backside - everything I hear from others is just tired old theory (or else anecdotes about superstars with personal trainers ...)