Vanity sizing drives me crazy! I'm 5'9", long-limbed, slim-hipped and weigh 125 lbs. I'm usually a size 4 at the Gap but have a size 0 skirt from them. (And I agree with Maximus - what the he**'s a ZERO? Does it mean it's no size at ALL? Is it INVISIBLE?) In other brands mentioned (Ellen Tracy, Ann Taylor, Old Navy), I'm a 2-4, but inconsistently so. I also rarely order online because sizing is too unpredictable and I'm too lazy to get out a tape measure and measure everywhere to compare my measurements to the company's stupid chart. If I was a size 4 last year at the Gap, I should be so this year and not have to remeasure every time I buy something.
And don't get me started about men's clothing. Men can not only choose inseam (which at 34", I'd love to do), they can choose collar circumference and sleeve length. And I doubt they buy nearly the amount of clothes women buy. Why can't a size 8 be so-and-so many inches at the waist, bust, hips, etc ACROSS THE BOARD with EVERY MANUFACTURER? (I'm sorry I'm yelling, but this stuff MAKES ME MAD!!)
I'm glad cropped pants are in, because I often have trouble finding pants that are long enough. I have two pairs of size 14 boys' jeans and khakis and they're nice and slim in the hips with a perfect (at least on me) cropped length. If you have a similar body-type to mine, head to the boys' department for some cropped pants!