Material in general for all items is thin and not great quality.

Women's Satin Dresses in XS regular:
Made for someone 1-2" taller than me and a little wider. I can tell that the creases in the top of the garment will not last through washes. Going back.
http://oldnavy.gap.com/browse/product.d ... =885865012

Women's Wrap-Style Tulip Skirts in XS regular:
Fits perfectly. Material is VERY THIN AND CHEAP. But it will take me 5 years to find a replacement so in the mean time I'll keep this one.
http://oldnavy.gap.com/browse/product.d ... pid=886045

Women's Charmeuse Shift Dress in XS regular:
Made for someone 1-2" taller and a little wider. Blue is true to what I see in the online photo. Very cute dress on trend, too bad. Going back.
http://oldnavy.gap.com/browse/product.d ... =885866012

Women's Charmeuse Tab-Sleeve Dress in XS petite:
Black is pretty material considering it's ON. Made for someone 1-2" taller than me. Undecided / probably going back.
http://oldnavy.gap.com/browse/product.d ... =898199002

Women's Ruffled Satin Dress in XS petite and XS regular:
Got XS petite in black and XS regular in chinchilla. XS petite fits perfectly at the top w/ room for a slightly bigger chest; I'd say no more than B cup. Bottom width is a little wide. Length is perfect if I alter to a pencil skirt or alternately it would look great maybe an inch shorter as-is in the A-line style width. Probably simpler and cheaper to hem, but I kind of like the pencil look. Will keep in black for sure, and probably alter the skirt somehow. XS regular is too big all over. I love the chinchilla color, and am torn over having major alterations done on this flimsy material or returning it. I may attempt altering it myself.... Wish I had nabbed one in petite sizing!

Women's 3/4-Sleeve Button-Tab Top in XS petite:
Loved it online. Got it in white. Fabric is very thin and sheer and surely will rip if anything snags it. Impossible to keep sleeves rolled w/ the tabs, would have to add a clever stitch here or there to keep the look. Sleeves let out down make the shirt look extremely boring. The neckline could use some detail. The shirt as-is is too wide on me and made for someone slightly taller. I am debating adding a few stitches to change the neckline to a V-shape or maybe I will just return it. Full price is a little too much given the quality and ill fit. Would have been more excited about the green color but it is sold out.
http://oldnavy.gap.com/browse/product.d ... =897947042

I tried on a J Crew trench (the bright red/orange one) earlier this week in 00 and it was a little too big. I think in 00P would be perfect, hmm.

I am also loving the J Crew Crewcuts toothpick cord, and a lot of their knit tees in size 12 girls. I tried on a jacket that was too tight in the shoulders but I have broader than average shoulders relative to everything else.

I agree with you that the item qualities are not the greatest.
I ordered a peacoat online (http://oldnavy.gap.com/browse/product.d ... =839580012). It was a very pretty mustard yellow (I don't think it's available anymore). When I saw that the size I wanted was available in petite sizing, I was so excited!

The item came and the coat turned out to be still too wide around my chest and waist area. The material of the coat made my skin itch and it was so irritating.