Have you ever sewn something only to find that it did not work well for your body shape? I know I have and it is one of the main reasons I struggle with sewing from a pattern. I am so frustrated by the waste of time, effort and fabric when my end result is not as useful as I'd hoped.
I've been reading a little about slopers; today this link showed up in my email box. It's a sign, right?
I hope some of the information there - I've just begun going through it - helps keep your crafting time productive and not wasted.