Coldwater Creek is rather generous in sizing, I believe the general consensus is that it runs about 2-4 sizes larger than other retailers. There are some cute accessories and basics that would be appropriate for slim petites, like belts (if you are armed with a leather hole-puncher), shoes, and jewelry.
Items in their Outlet Center will be discounted an additional 50% off (automatically applied at checkout); use code NZN6016 for 30% off and free shipping.
Slim Trouser Belt, Embossed Skinny Belt (cheapy replacement for the popular Ann Taylor Exotic Perfect Skinny Belt), Wooden Bead Flip-flops, Essential Flats, Lace Knit Top, and Tuck Detail Shimmer Shirt.