Improving Dolly

I got into trouble today from from one of my colleagues for my inhaler technique, apparently it isn't good! That's probably true, I'm not known for my coordination! My peak flows have really improved since I started my inhalers, before I was lucky if it was 400 on a good day, now it's regularly over 450 and into the 500's! Can't believe the difference, wish I'd known years ago!